Dr. Ronald J. O'Malley

 Awards

 AIST Lifetime Member, 2023

 AIST Jerry Silver Award, 2023

 AIME Board of Trustees Sept 2023

 MTI Designated Professional, January 2023.

 AFS Metalcasting Congress Aluminum and Light Metals Division 2023 Best Paper Award

AFS Metalcasting Congress Steel Division 2023 Best Paper Award

100th Anniversary Lecturer for the Henry Marion Howe Memorial Lecture Award, 2023.

 AIST Jerry Silver Award, 2022

 Ingram’s 2022 Icons of Education from the Missouri and Kansas bi-state region.

 AIST Refractory Systems Technology Committee Best Paper, May 2022.

 AIST President, 2019-2021.

  AISE Honorary Member 2021.

  Missouri S&T 2020-2021 Outstanding Teaching Commendation.

  Missouri S&T 2019-2020 Outstanding Teacher’s Award.

  AIST Refractory Systems Technology Committee Best Paper Award, May 2021.

  AIST Specialty Alloy and Foundry Best Paper Award, May 2020.

  AIST Richard J. Fruehan Award, October 2019. 

  Missouri S&T Mines and Metallurgy Academy Senior Faculty Award, April 2019.

  AFS Steel Division Best Paper Award, April 2019.

  Alpha Sigma Mu Lecturer, MS&T October,2018.

 Richard J. Fruehan Award, MS&T October, 2018.

  Kent D. Peaslee Award, AISTech 2018, May, 2018.

  Ladle and Secondary Refining Best Paper Award, AISTech 2018, May, 2018.

  1st Vice President - AIST, May 2018.

  Ladle and Secondary Refining Best Paper Award, AISTech 2017, May, 2017.

  Lecturer: Brimacombe Continuous Casting Course, April 2016.

  AIST Jerry Silver Award for Best Paper, May 2015.

  F. Kenneth Iverson Chair Professor of Steelmaking Technologies, January 2014. 

  AIST Presidental Citation, May 2013.

  AIST Distinguished Member and Fellow Award, May 2012.

  AIST Benjamin F. Fairless Award, May 2012.

  ISS Charles Herty Jr. Award for Best Paper, March 21-24, 1999.

  MCWASP Best Experimental Paper Award, June 7-12, 1998.

Research Interests

·      Inclusion Engineering and Clean Steel

·      Ladle Refining

·      Mold Flux and Mold Thermal Behavior in Continuous Casting

·      Steel Refractory Interactions

·      Oxidation, Scale Formation and Descaling

·      Continuous Casting of AHS and Specialty Steels

·      Solidification, Hot Tearing and Ductility

·      Strip Casting

·      Generation 3 AHS steel and lightweight Armor Development

·      Hot Rolling and Themomechanical Processing

·      Grain Refinement

·      Measurement Methods for Harsh Environments

·      Spray Cooling and Quenching

·      Microalloy Steels

·      Steel Machinability

·      Fluid Flow, Heat Transfer and Reaction Kinetics

Shortcuts

• O'Malley Metallurgical, LLC

• Google Citations

• R^G Citations

• ORCID

• Scholar's Mine

• Mendele

• PSMRC Member Site

Select Lectures and Publications

Pending Publications

• Amogh Meshram, Yuri Korobeinikov, Ronald J. OMalley, Seetharaman Sridhar, “Quantification of Swelling in Hematite Pellets reduced by H2”, submitted to Metals, Jan 2024.

• R.J. OMalley, B. Zhang, H. Tekle, J. Smith, R. Gerald, J. Huang, “Some Unique Methods for Investigating Mold Flux Structure and Crystallization Behavior”, Invited lecture, AISTech 2024, Cleveland, OH, April, 2024.

• Ogbole C. Inalegwu, Rony Kumer Saha, Yeshwanth Reddy Mekala, Farhan Mumtaz, Rex E. Gerald II, Jie Huang, and Ronald J. O’Malley, “Distributed Fiber Optic Sensors for Applications in Electric Arc Furnaces”, SPIE Defense + Commercial Sensing Conference on Optical Waveguide and Laser Sensors III, National Harbor, MD, April 21-25, 2024.

• Farhan Mumtaz, Hanok Tekle, Bohong Zhang, Jeffrey D. Smith, Ronald J. O'Malley, Rex. E Gerald II, and Jie Huang, “Distributed Sapphire Fiber Sensors for Steelmaking Industrial Applications”, SPIE Defense + Commercial Sensing Conference on Optical Waveguide and Laser Sensors III, National Harbor, MD, April 21-25, 2024.

• Bohong Zhang, Hanok Tekle, Ronald J. O'Malley, Jeffrey D. Smith, Farhan Mumtaz, Rex. E Gerald II, and Jie Huang, “Development of an Immersion Fiber Optic Raman Sensor for Real-time Analysis of Molten Materials up to 1600°C”, SPIE Defense + Commercial Sensing Conference on Optical Waveguide and Laser Sensors III, National Harbor, MD, April 21-25, 2024.

• Bohong Zhang, Abhishek Prakash Hungund, Dinesh Reddy Alla, Deva Prasaad Neelakandan, Muhammad Roman, Ronald J. O'Malley, Laura Bartlett, Farhan Mumtaz, Rex. E Gerald II, and Jie Huang,” Enhancing Aluminum Casting Efficiency through Real-Time Optical Fiber Sensor Monitoring at the Metal-Mold Interface”, SPIE Defense + Commercial Sensing Conference on Optical Waveguide and Laser Sensors III, National Harbor, MD, April 21-25, 2024.

• Kingsley T. Amatanweze, Viraj A. Athavale, Mario F. Buchely, Laura N. Bartlett, Ronald J. O’Malley, Daniel M. Field, Krista R. Limmer, Katherine M. Sebeck, “Controlling Nitrogen Pick-Up during Induction Melting of Ultra-High Strength Cr-Ni-Mo Steels”, submitted to AFS Metalcasting 2024 conference.

• Siva Sai K. Dasari, Henry A. Haffner, Mario F. Buchley, K. Chandrashekara, Simon N. Lekakh and Ronald J. O’Malley, “Comparison of Damage Initiation During Hot Rolling of 15V38 Steel Bar: Round-to-Round vs Square-to-Round Processes”, submitted to Journal of Manufacturing Processes, October 2023.

• Tyler M. Richards, Ronald J. O’Malley, Jeffrey D. Smith, Todd Sander, “Spinel Formation on Tundish Linings and the Impact of Steel Flow”, submitted to ISIJ International, 2023.

• Kingsley T. Amatanweze, Soumava Chakraborty, Viraj A. Athavale, Laura N. Bartlett, Ronald J. O’Malley, Mario F. Buchely, “Effect of Gating Design on Filling and Inclusion Control in Aluminum-killed Low-alloy Advanced High Strength Steel”, tbd, 2022.

Peer Reviewed Journal Publications

• Amogh Meshram, Yuri Korobeinikov, Daniela Dalle Nogare, Alberto Zugliano, Joe Govro, Ronald J. OMalley, and Seetharaman Sridhar, “Modelling the first Hydrogen Direct Reduction Pilot Reactor 2 for Ironmaking in the USA using Finite Element Analysis and 3 its Validation using Pilot Plant Trial Data”, MDPI Processes, Nov 2023, doi: 10.3390/pr11123346.

• Dinesh Reddy Alla, Deva Prasad Neelakandan, Rex E. Gerald II, Laura Bartlett, Ronald J. O’Malley, Todd P. Sander, Jeffrey D. Smith, Jie Huang, “Cascaded Sapphire Fiber Bragg Gratings Inscribed by Femtosecond Laser for Molten Steel Studies”, IEE Transactions on Instrumentation and Measurement, 11/28/2023, DOI: 10.1109/TIM.2023.3335530.

• Farhan Mumtaz, Bohong Zhang, Ronald J. O’Malley, and Jie Huang, “Large-Scale Cascading of First-Order FBG Array in a Highly Multimode Coreless Fiber using Femtosecond Laser for Distributed Thermal Sensing”, Optics Express, 31, no. 18, Aug, 2023, 29639-29653.

• Farhan Mumatz, Hanok Teekle, Bohong Zhang, Jeffrey D. Smith,2 Ronald J. O’Malley, and Jie Huang, “Boosting SNR of Cascaded FBGs in Sapphire Fiber through Fast Heat Treatment”, Optics Letters, 48 (21), 2023, pp.5703-5706.

• Kingsley T. Amatanweze, Viraj A. Athavale, Mario F. Buchely, Laura N. Bartlett1, Ronald J. O’Malley, “Residual Stress Distribution, Distortion and Crack Initiation in Conventional and Intensive Quench Practices”, Journal of Materials Engineering and Performance (JMEPEG), Nov 2023, https://doi.org/10.1007/s11665-023-08985-0.

• Yizhou Du, Ronald J. O’Malley, M.F. Buchely, “Effect of annealing time on texture evolution of Fe-3.3 wt.% Si non-oriented electrical steel”, Steel Research International, Sept 2023, doi/10.1002/srin.202300218, pp. 1-10.

• Abhishek Prakash Hungund, Hanok Tekle, Bohong Zhang, Ronald J. O'Malley, Jeffrey D. Smith, Rex. E Gerald II, Todd Sander, and Jie Huang, “Real-Time Air Gap and Thickness Measurement of Continuous Caster Mold Flux by Extrinsic Fabry-Perot Interferometer”, IEEE Transactions on Instrumentation and Measurement, vol. 72, pp. 1-14, 2023, Art no. 7007814, doi: 10.1109/TIM.2023.3326240

• Bohong Zhang, Abhishek Prakash Hungund, Dinesh Reddy Alla, Deva Prasaad Neelakandan, Muhammad Roman, Ronald J. O'Malley, Laura Bartlett, Rex. E Gerald II, and Jie Huang, “Advancing Aluminum Casting Optimization with Real-Time Temperature and Gap Measurements using Optical Fiber Sensors at the Metal-Mold Interface”, IEEE Transactions on Instrumentation and Measurement, Early Access on IEEE Xplore, Nov 2023, DOI 10.1109/TIM.2023.3329217.

• Farhan Mumtaz, Hanok Tekle, Jeffrey D. Smith, Ronald J. O’Malley, and Jie Huang, “Highly-Cascaded First-Order Sapphire Optical Fiber Bragg Gratings Fabricated by Femtosecond Laser”, Optics Letters, Vol 48, No. 16 August 15, 2023, pp 4380-4383.

• M. F. Buchely, S. Chakraborty, V. Athavale, L. Bartlett, R. OMalley, D. Field, K. Limmer, K. Sebeck, “Calibration of the Johnson-Cook Model at High Temperatures for an Ultra-High Strength CrNiMoV Steel”, Materials Science & Engineering A (2023), doi: https://doi.org/10.1016/j.msea.2023.145219.

• Yuri Korobeinikov, Amogh Meshram, Christopher Harris, Olexandr Kovtun, Joe Govro, Ronald J. O’Malley, Olena Volkova, Seetharaman Sridhar, “Reduction of iron ore pellets using different gas mixtures and temperatures”, Steel research int. Accepted Author Manuscript. https://doi.org/10.1002/srin.202300066.

• Simon N. Lekakh, Asebi Bofah, Ron O’Malley, Laura Bartlett, Larry Godlewski, "Effect of As-cast Surface on Oxidation Behavior of High Si Ductile Irons", International Journal of Metalcasting, May 2023, https://doi.org/10.1007/s40962-023-01072-z.

• Yizhou Du, Ronald J. O’Malley, M.F. Buchely, “Review of magnetic properties and texture evolution in non-oriented electrical steels”, Appl. Sci., Feb 2023, 13 (10), 6097; https://doi.org/10.3390/app13106097.

• S.K. Dasari1, S. Ganguly, A. Abutunis, K. Chandrashekhara, M.F. Buchely, S. N. Lekakh, R. J. O’Malley, T. Natarajan, “Implementation of Experimental Static Recrystallization of High Strength Steel into Computational Simulation of Multi-pass Slab Hot Rolling”, Metals and Materials International, April 2023, https://doi.org/10.1007/s12540-023-01442-6.

• Tyler Richards, Jeffrey Smith, Ronald O’Malley, Viraj Athavale, “High Temperature Confocal Scanning Laser Microscopy Analysis of Dead-Burned Magnesia Aggregates”, Int J Ceramic Eng. & Sci. Vol.5, Issue 3, April 2023; 1– 14. https://doi.org/10.1002/ces2.10175

• Damilola Balogun, Muhammad Roman, Rex E. Gerald II, Laura Bartlett, Jie Huang, Ronald O’Malley, “A Study on the Impact of Silicon and Manganese on Peritectic Behavior in Low Alloy Steels Assisted by Mold Thermal Mapping Technology and Shell Growth Measurements”, Metallurgical and Materials Transactions B Transactions B March 21, 2023, DOI: 10.1007/s11663-023-02764-x.

• Hans Pommerenke, Jiaqi Duan, Nathan Curtis, Victor DeLibera, Adam Bratten, Andrew Hoffman, Mario Buchely, Ronald O’Malley, Haiming Wen, “A strong and ductile cobalt-free solid-solution Fe30Ni30Mn30Cr10 multi-principal element alloy from hot rolling”, Journal of Alloys and Compounds, 948, May, 1023, p 169566.

• Richard Osei, Dmitry Tsvetkov, Tony Bader, Simon Lekakh, Ronald O’Malley, “Effect of Mold Powder Residue on Thin Cast Slab Scale Structure Evolution During Reheating and Descaling”, AIST Transactions, Vol. 20, No. 5, May, 2023, pp. 2-10 (AIST Jerry Silver Award, 2023).

• Farhan Mumatz, Dinesh Reddy Alla, Muhammed Roman, Bohong Zhang, Jeffrey D. Smith, Rex E. Gerald II, Ronald J. O’Malley, Jie Huang, “Thermally robust and highly stable method for splicing silica glass fiber to crystalline sapphire fiber”, Applied Optics 62.5 (2023): 1392-1398.

• B. Zhang, H. Tekle, R. J. O’Malley, J. D. Smith, R. E. Gerald II and J. Huang", In Situ High-Temperature Raman Spectroscopy via a Remote Fiber-Optic Raman Probe", IEEE Transactions on Instrumentation and Measurement, IEEE Transactions on Instrumentation and Measurement, Vol. 72, Feb. 2023, pp. 1-8, doi:10.1109/TIM.2023.3244238.

• Bohong Zhang, Hanok Tekle, Ronald J. OMalley, Todd Sander, Jeff Smith, Rex E. Gerald II, Jie Huang, “In Situ and Real-Time Mold Flux Analysis Using a High-Temperature Fiber-Optic Raman Sensor for Steel Manufacturing Applications” Journal of Lightwave Technology, DOI: 10.1109/JLT.2023.3239428, Jan 2023.

• Katelyn Kiser, Simon Lekakh, Mario Buchely, Viraj A. Athavale, Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Krista Limmer, Katherine Sebeck, Daniel Field, “Evaluating the Onset of Hot Tearing in High-Strength and Lightweight Steels Using Controlled Deformation Testing”, Transactions Vol. 20, No. 3, March 2023, pp. 1-12.

• Deva Prasaad Neelakandan, Dinesh Reddy Alla, Jie Huang and Ronald J. O’Malley, “Liquid-core Detection and Strand Condition Monitoring in a Continuous Caster using Optical Fiber”, Sensors 2022, 22, 9816. https://doi.org/10.3390/ s22249816.

• Muhammad Roman, Hanok Tekle, Dinesh Reddy Alla, Ronald J. O’Malley, Rex E. Gerald II, and Jie Huang, “Temperature Monitoring in the Refractory Lining of a Continuous Casting Tundish using Distributed Optical Fiber Sensors”, IEEE Transactions on Instrumentation and Measurement 2022, doi: 10.1109/TIM.2022.3225033.

• Amogh Meshram, Joe Govro, Ronald J. OMalley, Seetharaman Sridhar and Yuri Korobeinikov, “Modeling Isothermal Reduction of Iron Ore Pellet Using Finite Element Analysis Method: Experiments & Validation”, Metals 2022, 12 (12), 2026, Nov 25, 2022; https://doi.org/10.3390/met12122026.

• Jacob M. Summers, Soumava Chakraborty, Laura N. Bartlett, Ronald J. O’Malley, Mario F. Buchely, Richard Pilon, “On the Effect of Hot Rolling on Inclusion Size and Distribution in a Cast AISI 1070 Steel Railroad Wheel”, International Journal of Metalcasting, , August, 2022, https://doi.org/10.1007/s40962-022-00854-1

• Richard Osei, Simon Lekakh, Ronald O’Malley, “Effect of Cu additions on Scale Structure and Descaling Efficiency of Low C Steel Reheated in a Combustion Gas Atmosphere”, Oxidation of Metals, Aug 2022, https://doi.org/10.1007/s11085-022-10125-3.

• Yizhou Du, Ronald J. O’Malley, M.F. Buchely, “Effect of cooling rate on magnetic properties of Fe-3.3 wt.% Si non-oriented electrical steel" Metals and Materials International, May 2022, https://doi.org/10.1007/s12540-022-01184-x.

• Yizhou Du, Ronald J. O’Malley, M.F. Buchely, Paul Kelly, “Effect of rolling process on magnetic properties of Fe-3.3 wt.% Si non-oriented electrical steel”, Applied Physics A, 128: 765, 2022, https://doi.org/10.1007/s00339-022-05902-5

• M. Hossein Sehhat, Austin T. Sutton, Chia-Hung Hung, Ben Brown, Ronald J. O'Malley, Ming C. Leu, “Plasma Spheroidization of Gas-atomized 304L Stainless Steel Powder for Laser Powder Bed Fusion Process”, Materials Science in Additive Manufacturing, Vol 1, Issue 1, February 2022.

• Muhammad Roman, Damilola Balogun, Chen Zhu, Laura Bartlett, Ronald J. O’Malley, Rex E. Gerald II, and Jie Huang, “Thermal Mapping of Metal Casting Mold using High Resolution Distributed Fiber-Optic Sensors”, IEEE Transactions on Instrumentation and Measurement, vol. 70, pp. 1-10, 2021, Art no. 7007210, doi: 10.1109/TIM.2021.3121500.

• Damilola Balogun, Muhammad Roman, Rex E. Gerald II, Jie Huang, Laura Bartlett, Ronald O’Malley, “Shell Measurements and Mold Thermal Mapping Approach to Characterize Steel Shell Formation in Peritectic Grade Steels”, Steel Research International, 2021, 2100455. https://doi.org/10.1002/srin.202100455.

• Richard Osei, Simon N. Lekakh, Ronald O’Malley, “Effect of Al Additions on Scale Structure and Oxidation Kinetics of 430-Ferritic Stainless Steel Reheated in a Combustion Atmosphere”, Metallurgical and Materials Transactions B, March, 2021, https://doi.org/10.1007/s11663-021-02272-w.

• Yanru Lu, Laura N. Bartlett, Ronald J. O’Malley, “A Review on Hot Tearing of Steels”, International Journal of Metalcasting, Apr 2021, ISDN: 2163-3193, https://doi.org/10.1007/s40962-021-00599-3.

• Yanru Lu, Laura N. Bartlett, Ronald J. O’Malley, Simon N. Lekakh, “Method to Investigate Mechanical Behavior of Steel Casting near Solidus Temperature”, Steel Research International, April 2021, https://doi.org/10.1002/srin.202100007.

• Simon N. Lekakh, Asebi Bofah, Richard Osei, Ron O’Malley, Larry Godlewski, and Mei Li, “High Temperature Oxidation and Decarburization of SIMo Cast Iron in Air and Combustion Atmosphere”, , Oxidation of Metals, 95 (3) 2021, pp 251-268, DOI 10.1007/s11085-021-10022-1.

• Lekakh, S.N., Buchely, M., O'Malley, R., Godlewski, L., Li, M., “Thermo-cycling Fatigue of SiMo Ductile Iron using a Modified Thermo-Mechanical Test”, International Journal of Fatigue (2021), doi: https://doi.org/10.1016/j.ijfatigue.2021.106218.

• Soumava Chakraborty, Ronald J. O’Malley and Laura Bartlett, “Ceramic Foam Filter Micropores as Sites for Liquid Inclusion Retention”, International Journal of Metalcasting, AFS, March 2021, https://doi.org/10.1007/s40962-021-00585-9.

• S. Ganguly, X. Wang, K. Chandrashekhara, M. F. Buchely, S. Lekakh, R. J. O’Malley, A. Kumar and V. Thapliyal, “Modeling and Simulation of Mass Flow During Hot Rolling Low Carbon Steel I-Beam”, Journal of Manufacturing Processes, Vol 64, April 2021, pp.285-293, https://doi.org/10.1016/j.jmapro.2021.01.023.

• Muhammad Roman, Chen Zhu, Ronald J. O’Malley, Rex E. Gerald II, and Jie Huang, “Distributed Fiber-Optic Sensing with Low Bending Loss Based on Thin-Core Fiber”, IEEE Sensors Journal, IEEE, Vol. 21, No. 6, March 2021, pp.7672-7680, ISSN: 1530-437X.

• Richard Osei, Simon Lekakh, Ronald O’Malley, “Thermodynamic Prediction and Experimental Verification of Multi-phase Composition of Scale Formed on Reheated Alloy Steels”, Metallurgical and Materials Transactions B, Nov, 2020, https://doi.org/10.1007/s11663-020-02023-3, https://rdcu.be/cbv1q.

• Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett and Mingzhi Xu, “Removal of Alumina Inclusions from Molten Steel by Ceramic Foam Filtration”, International Journal of Metals Casting, Oct, 2020, https://doi.org/10.1007/s40962-020-00537-9.

• S. Ganguly, X. Wang, K. Chandrashekhara, M. F. Buchely, S. Lekakh, and R. J. O’Malley, D. Bai and Y. Wang, “Modeling and Simulation of Void Closure During Steckel Mill Rolling for Steel Plate”, Steel Research International, 2020, DOI:10.1002/srin.202000293.

• M. Roman, D. Balogun, Y. Zhuang, R. E. Gerald II, L. Bartlett, R. J. O'Malley and J. Huang, "A Spatially Distributed Fiber-Optic Temperature Sensor for Applications in the Steel Industry", Sensors 2020, 3900, DOI 10.3390/s20143900, https://www.mdpi.com/1424-8220/20/14/3900.

• M.F. Buchely, S. Ganguly, D.C. Van Aken, R.J. O’Malley, S. Lekakh, K. Chandrashekhara, “Experimental Development of Johnson-Cook Strength Model for Different Carbon Steel Grades and Application for Single Pass Hot Rolling”, Steel Research International, Vol. 21, Issue 7 July, 2020, DOI: 10.1002/srin.201900670.

• Obinna Adaba, Ronald O'Malley, and Laura Bartlett, "Effect of Pre-Existing Inclusions on the Size and Morphology of Al2O3 - Results from Two Stage and Fixed Supersaturation Deoxidation", Metallurgical and Materials Transactions B, DOI: 10.1007/s11663-020-01884-y, June 2020.

• Obinna Adaba, Ronald O'Malley, and Laura Bartlett, "Effect of Pre-Existing Inclusions on the Size and Morphology of Al2O3 - Single Stage Deoxidation with Varying Levels of Supersaturation", Metallurgical and Materials Transactions B, DOI: 10.1007/s11663-020-01885-x, https://rdcu.be/b43OX June 2020.

• K. Balasubramanian, L. N. Bartlett, R. O’Malley, S. Chakraborty and M. Xu, “Filtration Efficiency of Inclusions in Lightweight FeMnAl Steels”, International Journal of Metalcasting, Volume 14, Issue 2, 2020, pp. 328-341, DOI 10.1007/s40962-019-00372-7.

• X. Wang, K. Chandrashekhara, M. F. Buchely, S. Lekakh, D. C. Van Aken, R. J. O’Malley, G. W. Ridenour and E. Scheid, “Experiment and Simulation of Static Softening Behavior of Alloyed Steel During Round Bar Hot Rolling”, Journal of Manufacturing Processes, Vol. 52, 2020, pp. 281-288, https://doi.org/10.1016/ j.jmapro.2020.02.031.

• Xueliang Zhang, Simon N. Lekakh, Ronald J. O’Malley, Eduardo Scheid, “Effect of Selenium on the Machinability of As-Hot Rolled and Heat Treated 4140 Steel”, ISIJ International, Vol. 60, No. 4., Apr, 2020.

• Rairu Vaz Penna, Laura Bartlett, Ron O'Malley, "Influence of TiN Additions on the Microstructure of a Lightweight Fe-Mn-Al Steel", International Journal of Metalcasting, Volume 14, Issue 2, 2020, pp. 342-355, DOI 10.1007/s40962-019-00373-6.

• Koushik K. Balasubramanian, Soumava Chakraborty, Laura Bartlett, Ronald O'Malley, Mingzhi Xu, “Filtration efficiency of inclusions in FeMnAl steels”, International Journal of Metalcasting, Volume 14, Issue 2, 2020, pp. 328-3415, DOI 10.1007/s40962-019-00372-7.

• Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Mingzhi Xu, “Entfernung fester Einschlüsse aus der”, Giesserei Praxis Science, 2019, 8–14, https://www.science.giesserei-praxis.de/articles/abstract/30/#.

• Tihe Zhou, Hatem Zurob, Ronald O`Malley, “A New Alloy System Having Autogenous Grain Pinning at High Temperature”, Materials Processing Fundamentals 2019, The Minerals, Metals & Materials Series, G. Lambotte, et al. (eds), pp 73-86, 2019, https://doi.org/10.1007/978-3-030-05728-2_7.

• Dustin A. Arvola, Mark C. Emmendorfer, Ronald J. O’Malley, Simon N. Lekakh, Laura N. Bartlett, “Effect of Grain Refining on Properties of Super Austenitic Stainless Steel”, Journal of Materials Engineering and Performance, https://doi.org/10.1007/s11665-019-03895-6.

• Tihe Zhou, Ronald J. O`Malley, Hatem S. Zurob, Mani Subramanian, Sang-Hyun Cho, and Peng Zhang, “Control Upstream Austenite Grain Coarsening during Thin Slab Casting Direct Rolling (TSCDR) Process”, Metals, 2019, 9, 158 doi:10.3390/met020158, pp 1-18.

• M.F. Buchely, X. Wang, D.C. Van Aken, R.J. O’Malley, S. Lekakh, K. Chandrashekhara, “The use of Genetic Algorithms to calibrate Johnson-Cook strength and failure parameters of AISI/SAE 1018 steel”, Journal of Engineering Materials and Technology, ASME. J. Eng. Mater. Technol. 2018. doi:10.1115/1.4042382.

• Dustin A. Arvola, Simon N. Lekakh, Ronald J. O’Malley, Laura N. Bartlett, “Two Inoculation Methods for Refining As-cast Grain Structure in Austenitic 316L Steel”, International Journal of Metal Casting, 2018, https://doi.org/10.1007/s40962-018-0260-1, pp.1-15.

• Simon N. Lekakh, Ron O’Malley, Mark Emmendorfer and Brenton Hrebec, “Control of Columnar to Equiaxed Transition in Solidification Macrostructure of Austenitic Stainless Steel Castings”, ISIJ International, Vol. 57 (2017), No. 5, pp. 824–832, https://doi.org/10.2355/isijinternational.ISIJINT-2016-684.

• X. Wang, H. Li, K. Chandrashekhara, S.A. Rummel, S. Lekakh, D.C. Van Aken, R.J O’Malley,”Inverse finite element modeling of the barreling effect on experimental stress-strain curve for high temperature steel compression test”, Journal of Materials Processing Technology, Vol. 43, May 2017, pp. 465-473, https://doi.org/10.1016/j.jmatprotec.2017.01.012.

• X. Wang and K. Chandrashekhara, S. A. Rummel, S. Lekakh, D. C. Van Aken and R. J. O’Malley, “Modeling of Mass Flow Behavior of Hot Rolled Low Alloy Steel based on Combined Johnson-Cook and Zerilli-Armstrong Model”, Journal of Materials Science 52.5 (2017): 2800-2815.

• S.N. Lekakh, J. Ge, V. Richards, R. O’Malley & J.R. TerBush, “Optimization of Melt Treatment for Austenitic Steel Grain Refinement”, Metallurgical and Materials Transactions B, Vol. 48, Issue 1, Feb 2017, pp. 406-419.

• M. Mohammadi-Ghaleni, M.A. Zaeem, J.D. Smith, & R.J. O’Malley, “Comparison of CFD Simulations with Experimental Measurements of Nozzle Clogging in Continuous Casting of Steels”, Metallurgical and Materials Transactions B, 47(6), December 2016, pp. 3384-3393.

• Monica Kapoor, Ronald O’Malley, and Gregory B. Thomson, “Atom Probe Tomography Study of Multi-Microalloyed Carbide and Carbo-Nitride Precipitates and the Precipitation Sequence in Nb-Ti HSLA Steels”, Metallurgical and Materials Transactions A, May 2016, Volume 47, Issue 5, pp 1984-1995.

• Lance C Hibbeler, Melody M Chin See, Junya Iwasaki, Kenneth E Swartz, Ronald J O’Malley, Brian G Thomas, "A Reduced-Order Model of Mould Heat Transfer in the Continuous Casting of Steel:", Applied Mathematical Modeling, Vol. 40 (19), May 2016, pp. 8530-8551.

• Mahdi Mohammadighaleni, Mohsen Asle Zaeem, Jeffrey D. Smith, and Ronald O’Malley, “Computational Fluid Dynamics Study of Molten Steel Flow Patterns and Particles-Wall Interactions inside a Slide-Gate Nozzle by a Hybrid Turbulent Model”, Metallurgical and Materials Transactions B, Vol. 47, Issue 5, April 2016, pp. 1-10.

• T. Zhou, H. S. Zurob, R. J. O’Malley and K. Rehman, “Model Fe-Al Steel with Exceptional Resistance to High Temperature Coarsening. Part I: Coarsening Mechanism and Particle Pinning Effects” Metallurgical and Material Transactions A, October 2014.

• T. Zhou, P. Zhang, R. J. O’Malley, H. S. Zurob, and M. Subramanian, “Model Fe-Al Steel with Exceptional Resistance to High Temperature Coarsening. Part II: Experimental Validation and Applications” Metallurgical and Materials Transactions A, October 2014.

• V.S.A. Challa, W.H. Zhou, R.D.K. Misra, R.O’Malley, S.G. Jansto, “The effect of coiling temperature on the microstructure and mechanical properties of a niobium–titanium microalloyed steel processed via thin slab casting,” Materials Science and Engineering A, 595 (2014) 143-153.

• L. Hibbeler, I Hwang, M. Langeneckert, J. Iwasaki, B.G. Thomas, R.J. O’Malley, “Calibration of Thermal Models of Steel Continuous Casting Molds”, AIST Transactions, Sept 2013, pp. 199-210.

• J. Stock, C.M. Enloe, R. J. O’Malley, K.O. Findley, and J. G. Speer, “Cooling Rate Effects on the As-Cast Titanium Nitride Precipitation Size Distribution in a Low-Carbon Steel”, AIST Transactions, Vol.11, No. 4, June, 2014, pp. 180-187.

• Lance C Hibbeler, Melody M Langeneckert, Junya Iwasaki, Inwho Hwang, R J OMalley, Brian G Thomas, “Calibration of Thermal Models of Continuous Casting of Steel”, AIST Transactions, Vol. 10, issue 5, Sept, 2013, pp. 199-213.

• I.C. Okafor, R.J. O’Malley, K.R. Prayakarao, and H.A. Aglan, “Effect of Zinc Galvanization on the Microstructure and Fracture Behavior of Low and Medium Carbon Structural Steels”, Engineering, 5, August 2013.

• R.K. Misra, Z. Jia, R. O’Malley, S.J. Jansto, “Precipitation Behavior During Thin Slab Thermomechanical Processing and Isothermal Aging of Copper-bearing Niobium-Microalloyed High Strength Structural Steels: The Effect on Mechanical Properties”, Materials Science and Engineering A 528, 2011, 8772– 8780.

• Z. Jia, D.D.K. Misra, R. O’Malley, S.J. Jansto, "Fine-Scale Precipitation and Mechanical Properties of Thin Slab Processed Titanium–Niobium Bearing High Strength Steels", Materials Science and Engineering A, Vol. 528, 2011, pp. 7077– 7083.

• Kun Xu, Brian G. Thomas, Ron O’Malley, “Equilibrium Model of Precipitation in Microalloyed Steels” Metallurgical and Materials Trans. A, Vol. 42, Issue 2, pp. 524-539, Feb. 2011.

• Tihe Zhou, Ronald J. O’Malley, Hatem S. Zurob, “Study on Grain Growth Kinetics in Delta Ferrite and Austenite with Application to Thin-Slab Cast Direct-Rolling Microalloyed Steels” Metallurgical and Materials Trans. A, Volume 41A, August 2010, pp, 2112-2122.

• B. Zhao, B.G. Thomas, S.P. Vanka, and R.J. O’Malley, “Transient Flow and Temperature Transport in Continuous Casting of Steel Slabs”, Journal of Heat Transfer, Vol. 127, August 2005, p. 807.

• B. Zhao, B.G. Thomas, S.P. Vanka, and R.J. O’Malley, “Transient Flow and Temperature Transport in Continuous Casting of Steel Slabs”, Met and Mat Trans B, Vol. 36, (6) December 2005, p. 801-823.

• R. J. O’Malley: “Casting Technologies for Direct Hot Charging at Armco Mansfield”, Steel Times Int., Vol. 22, No. 1, January 1998, pp. 12-19.

• R. J. O'Malley, M. E. Karabin, and R. E. Smelser, “The Roll Casting Process: Numerical and Experimental Results”, Journal of Materials Processing & Manufacturing Science, Vol. 3, July 1994, pp. 59-71.

• R. J. O'Malley, C. E. Dremann, and D. Apelian, “Alloying of Aluminum by Manganese Powder Injection”, Journal of Metals, Vol. 31, No. 2, Feb. 1979, pp. 14-19.

• R. J. O'Malley, C. E. Dremann, and D. Apelian, “Alloying of Aluminum by Manganese Powder Injection”, Journal of Metals, Vol. 31, No. 2, Feb. 1979, pp. 14-19.

Journal Publications

• Bohong Zhang, Hanok Tekle, Jeff Smith, Todd Sander, Ronald O’Malley, Jie Huang, “Fiber-Optic Raman Probe for On-line EAF Slag Analysis”, Iron & Steel Technology, Jan 2024, pp. 70-77 (Selected for publication).

• Hanok Tekle, Muhammad Roman, Dinesh Reddy Alla, Jeff Smith, Todd Sander, Ronald OMalley, Jie Huang, “Distributed Temperature Monitoring of Tundish Refractory Lining using Optical Fiber Sensors”, Iron & Steel Technology, Jan 2024, (Selected for publication).

• T.P. Ojiako, V. A. Athavale, R. Osei, M.F. Buchely, L. N Bartlett, S. Lekakh, R.J. O’Malley, “Effect of Water Jet Nozzle Lead Angle on Descaling Efficiency”, Iron & Steel Technology, November 2023, pp58-64. (Selected for publication)

• R.J. O’Malley, “Fiber Optic Sensing Technologies Supporting Advancements in Steel Production and the Shift to Industry 4.0”, Iron & Steel Technology, Aug. 2023. (Invited publication)

• Katelyn Kiser, Simon Lekakh, Mario Buchely, Viraj A. Athavale, Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Krista Limmer, Katherine Sebeck, Daniel Field, “Evaluating the Onset of Hot Tearing in High-Strength and Lightweight Steels Using Controlled Deformation Testing”, Iron & Steel Technology, AIST, Vol. 20, No, 3, pp. 214-226, March 2023 (Selected by AIST for publication).

• J. Govro, A. Meena, S. Chakraborty, A. Meshram, I. Korobeinikov, K. Phillips, V. Athavale, L. Bartlett1, J. Smith, A. Emdadi, S. Seetharaman, R. O’Malley, “Melting Behavior of Hydrogen-Reduced DRI in a Simulated EAF Steel Bath”, Iron & Steel Technology, AIST, April 2023 (Selected by AIST for publication).

• Richard Osei, Simon Lekakh and Ronald O’Malley, “Scale Formation on 430 Stainless Steel in a Simulated Slab Combustion Reheat Furnace Atmosphere”, Iron & Steel Technology, AIST, November 2021 (Selected by AIST for publication).

• S. Ganguly, K. Chandrashekhara, M. F. Buchely, S. Lekakh, and R. J. O’Malley, “A modified Johnson-Cook model incorporating the effect of grain size on flow stress”, Iron and Steel Technology, AIST, Oct 2021. (Selected by AIST for publication).

• Xueliang Zhang, Simon N. Lekakh, Ronald J. O'Malley, Eduardo Scheid, Mark Emmendorfer, and Mike Fox, Proc., "Effect of V and Al Grain Refining Treatment on Steel Machinability", Iron and Steel Technology, Oct 2020, pp. 72-78. (Selected by AIST for publication).

• D.A. Arvola, R.J. O’Malley, S.N. Lekakh and L.N. Bartlett, “Effect of Phase Solidification Sequence in Stainless Steel on Grain Refining Efficiency”, Iron & Steel Technology, AIST, Oct. 2018 (AIST best paper award).

• R. J. O’Malley, E. I. Peterson, J. D. Smith, S. Jauch, M. McClymonds, and N. Sutcliffe, “Influence of Mold Flux Crystallite Film Fracture on Thermal Fluctuations in a Thin Slab Funnel Mold”, Iron & Steel Technology, AIST, July, 2018, pp 58-66 (Selected for publication).

• X. Wang, K. Chandrashekhara, S. N. Lekakh, D. C. Van Aken and R. J. O’Malley, “Modeling and Simulation of Dynamic Recrystallization Behavior in 15V38 during Hot Rolling”, Steel Research International, https://doi.org/10.1002/srin.201700565, March 5, 2018.

• Obinna Adaba, Pallava Kaushik, Ronald J. O’Malley, Simon N. Lekakh, Von L. Richards, Erik Mantel, Randy Hall, Eric J. Ellis, “Characteristics of Spinel Inclusions Formed after Reoxidation of Calcium Treated Aluminum Killed Steel”, Iron & Steel Technology, July 2017, pp. 38-49 (Selected for publication).

• R. J. O’Malley, “Inclusion Evolution and Removal in Ladle Refining”, Proc., AISTech 2017, Nashville, TN, May, 2017 (AIST best paper award, Peaslee award, Fruehan award).

• Andrew A. Russo, Jeffrey D. Smith, Ronald J. O’Malley, Von L. Richards, “Mechanism for Carbon Transfer from Magnesia-Graphite Ladle Refractories to Ultralow-Carbon Steel”, Iron & Steel Technology, Oct, 2016 (Selected for publication – best paper award).

• Madeline Rembold, Oscar Chahin, Neal Ross, Bob Williams, Ron O’Malley, “Investigation of Stopper Rod Tip Wear on a Thin-Slab Caster”, Iron & Steel Technology, July 2015, pp.43-51 (Selected for publication)

• R. Bachowski, R.J. O'Malley, M.M. Mohajery, “Continuous Casters for Aluminum Mini-Sheet Mills - an Alcoa Perspective”, Light Metal Age, Vol. 47, Nos. 7 & 8, August 1989, pp. 6 - 12.

Conference Proceedings

• Kingsley T. Amatanweze, Mario F. Buchely, Viraj A. Athavale, Laura N. Bartlett, Ronald J. O’Malley, “Effect of Intensive Quenching on the Microstructure and Mechanical Properties of a Cr-Ni-Mo Steel”, Proc. Heat Treat 2023, Detroit, MI, October 2023.

• Katelyn Kiser, Viraj A. Athavale, Laura Bartlett, Mario Buchely, Ronald O’Malley, “Growth Kinetics and Development of the Solid-Liquid Interface in Low Carbon and High Alloy Steel Castings Enabled by Confocal Microscopy”, Proc., AFS MetalCasting Congress, American Foundry Society, Cleveland, OH April 25-27, 2023.

• R.J. O’Malley, “Fiber Optic Sensing Technologies Supporting Advancements in Steel Production and the Shift to Industry 4.0”, 100th Anniversary Henry Marion Howe Memorial Lecture Award, AISTech 2023, Detroit, MI, May 2023.

• Rogerio Cardoso, Michael Piston, Mario Buchely, Laura Bartlett, Ron O’Malley, Krista Limmer, Daniel Field, Katherine Sebeck, “Strain Rate and Temperature Dependence of Dynamic Recrystallization in a Lightweight FeMnAl Steel with Nickel Additions”, AIST International Symposium on New Developments in Advanced High-Strength Sheet Steels, 19–22 June 2023, Vail, CO.

• Katelyn Kiser, Viraj A. Athavale, Mario Buchely, Laura N. Bartlett, Ronald J. O’Malley, “A Study of the Solidification of Fe-Mn-Al Steels Using the High-Temperature Laser Scanning Confocal Microscope”, Int. Symposium on New Developments in Advanced High-Strength Sheet Steels, 19–22 June 2023, Vail, CO.

• Bohong Zhang, Hanok Tekle, Ronald J. O'Malley, Todd Sander, Jeffrey D. Smith, Rex E. Gerald II, Jie Huang, “Structural analysis of molten materials by a remote fiber optic Raman sensor”, Proceedings Volume 12532, Optical Waveguide and Laser Sensors II, 2023, Orlando, FL https://doi.org/10.1117/12.2663853.

• R.J. O’Malley, “Fiber Optic Sensing Technologies Supporting Advancements in Steel Production and the Shift to Industry 4.0”, 100th Anniversary Henry Marion Howe Memorial Lecture Award, AISTech 2023, Detroit, MI, May 2023.

• Bohong Zhang, Hanok Tekle, Jeff Smith, Todd Sander, Ronald O’Malley, Jie Huang, “The Study of the Behavior of CaO-SiO2-Al2O3-Na2O-Based Mold Flux in 1400C by a Fiber-Optic Raman Sensor”, AISTech 2023, Detroit, MI, May 2023.

• Bohong Zhang, Hanok Tekle, Jeff Smith, Todd Sander, Ronald O’Malley, Jie Huang, “Fiber-Optic Raman Probe for On-line EAF Slag Analysis”, AISTech 2023, Detroit, MI, May 2023.

• Hanok Tekle, Muhammad Roman, Dinesh Reddy Alla, Jeff Smith, Todd Sander, Ronald OMalley, Jie Huang, “Distributed Temperature Monitoring of Tundish Refractory Lining using Optical Fiber Sensors”, AISTech 2023, Detroit, MI, May 2023.

• Katelyn Kiser, Viraj A. Athavale, Mario Buchely, Laura N. Bartlett, Ronald J. O’Malley, “In-Situ Observation of the Solidification of X70 Steel Using High-Temperature Laser-Scanning Confocal Microscope”, AISTech 2023, Detroit, MI, May 2023.

• T.P. Ojiako, V. A. Athavale, R. Osei, M.F. Buchely, L. N Bartlett, S. Lekakh, R.J. O’Malley, “Investigating the Effect of Different Descale Nozzle Types and Jet Angles on Scale Removal”, AISTech 2023, Detroit, MI, May 2023.

• Roman, M., Balogun, D., Bartlett, L., O’Malley, R. J., Gerald, R. E., & Huang, J., “Optical Fiber Temperature Sensors Embedded in a Metal Casting Mold”, 27th International Conference on Optical Fiber Sensors, Alexandria, Virginia, August 29-Sept 2, 2022 Optica Publishing Group, ISBN: 978-1-957171-14

• Bohong Zhang, Hanok Tekle, Laura Bartlett, Rex E. Gerald, Jie Huang, Ronald OMalley, “High-Temperature Fiber-Optic Raman Sensor for Steel Manufacturing”, Fiber Optic Sensors and Applications XVIII. SPIE, Orlando, FL, April 3-7, 2022.

• Dinesh Reddy Alla, Deva Prasad Neelakandan, Laura Bartlett, Ronald OMalley, Jie Huang, “High Temperature Fiber Optic Sensors for Steel Industry Applications”, SPIE Defense + Commercial Sensing Conf., Orlando, FL, April 3-7, 2022.

• R. Cardoso, M.F. Buchely, V.A. Athavale, S. Chakraborty, R.J. O’Malley, L.N. Bartlett, Krista Limmer, Katherine Sebeck, Daniel Field, “High-Temperature Compression Behavior and Phase Transformations During Continuous Cooling of a Low-Alloy Cr-Ni-Mo Ultra-High Strength Steel”, AISTech 2022, Pittsburgh, 2022.

• Katelyn Kiser, Simon Lekakh, Mario Buchely, Viraj A. Athavale, Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Krista Limmer, Katherine Sebeck, Daniel Field, “Evaluating the Onset of Hot Tearing in High-Strength and Lightweight Steels Using Controlled Deformation Testing”, AISTech 2022, Pittsburgh, 2022.

• Richard Osei, Dmitry Tsvetkov, Tony Bader, Simon Lekakh, Ronald O’Malley, “Effect of Mold Powder Residue on Thin Cast Slab Scale Structure Evolution During Reheating and Descaling”, AISTech 2022, Pittsburgh, 2022.

• J. Govro, A. Meena, S. Chakraborty, A. Meshram, I. Korobeinikov, K. Phillips, V. Athavale, L. Bartlett1, J. Smith, A. Emdadi, S. Seetharaman, R. O’Malley, “Melting Behavior of Hydrogen-Reduced DRI in a Simulated EAF Steel Bath”, AISTech 2022, Pittsburgh, 2022.

• Deva Prasaad Neelakandan, Muhammad Roman, Damilola Balogun, Dinesh Reddy Alla, Chen Zhu, Laura Bartlett, Rex E. Gerald, Jie Huang and Ronald J. O’Malley, “Distributed Temperature and Gap Measurements at the Metal-Mold Interface during Aluminum Casting using Optical Fiber Sensors”, Proc. AFS CastExpo Metalcasting Congress, Columbus, OH, April 23-28, 2022 (Best Paper Award).

• Jacob Summers, Laura Bartlett, Ronald O’Malley, Mario Buchely, and Richard Pilon, “Evaluation of Notch Toughness after Simulated Ring-Rolling of AISI 1070 Steel Wheel Castings (22-064),” Proceedings of the 126th Metalcasting Congress, April 23-26, 2022 (Best Paper Award).

• Tyler Richards, Jeffrey Smith, Ronald O’Malley, Todd Sander, “Interactions Between Glazed Carbon-Bearing Refractories and Molten Steel”, UNITECR 2022, Chicago, March 15-18, 2022.

• Tyler Richards, Jeffrey Smith, Ronald O’Malley Todd Sander, “Impact of Olivine on Refractory Corrosion Resistance”, UNITECR 2022, Chicago, March 15-18, 2022.

• Tyler Richards, Jeffrey Smith, Ronald O’Malley Todd Sander, “Comparison of Two Dry Vibratable Tundish Linings Through Laboratory Experiments”, UNITECR 2022, Chicago, March 15-18, 2022.

• Viraj A. Athavale, Mario Buchely, Laura Bartlett, Ronald O’Malley, and David C. Van Aken, “On a modified approach of measuring quench severity and its application”, Heat Treat 21, 31st Heat Treating Society Conf and Exhibition, St. Louis, Sept 2021.

• M. Varadarajan, L. Bartlett, S. Lekakh, R.J. O’Malley, M.F. Buchely, “Hot Ductility Behavior of V-N Microalloyed Steels”, AISTech 2021, Nashville, June 2021.

• Tyler Richards, Ronald J. O’Malley, Jeffrey D. Smith, Todd Sander, “Interactions between Tundish Refractories, Tundish Fluxes and Molten Steel”, AISTech 2021, Nashville, June 2021.

• S. Ganguly, K. Chandrashekhara, M. F. Buchely, S. N. Lekakh and R. J. O’Malley “Prediction of Damage During Different Hot Rolling Schedules of Medium Carbon V Microalloyed Steel”, AISTech 2021, Nashville, June, 2021.

• Damilola Balogun, Laura Bartlett, Ronald O’Malley, Mohammed Roman, Jie Huang, Rex Gerald, “A Fiber Optic Distributed Temperature Mapping Technique to Characterize Shell Solidification in Peritectic Grade Steels”, AISTech 2021, Nashville, June 2021.

• Richard Osei, Simon Lekakh, Ronald O’Malley, “Descaling of High Si, Mn and Medium C Steels”, AISTech 2021, Nashville, June 2021.

• Tyler Richards, Ronald J. O’Malley, Jeffrey D. Smith, Todd Sander, “Interactions between Dry Vibe Tundish Linings and Steel Melts”, Proc. AISTech 2020, PR-380-242.7771, http://digital.library.aist.org/categories/2020aistechconferenceproceedings-pr.htm, DOI 10.33313/380/242.

• Yizhou Du, Ronald J. O’Malley, M.F. Buchely, Mingzhi Xu, “Design and Evaluation of a Lab Size Vacuum-Sampling Method for Simulating the Twin-Roll Strip Casting Process”, AISTech 2021, Nashville, June 2021.

• Y. Lu, M. Buchely, L. Bartlett, S. N. Lekakh and R. J. O’Malley, “New Experimental Apparatus to Investigate Hot Tearing Behavior in Steel”, Proc. AISTech 2020, PR-380-157.9638, http://digital.library.aist.org/categories/2020aistechconferenceproceedings-pr.htm, DOI 10.33313/380/157.

• Richard Osei, Simon Lekakh and Ronald O’Malley, “Scale Formation on 430 Stainless Steel in a Simulated Slab Combustion Reheat Furnace Atmosphere”, Proc. AISTech 2020, PR-380-120.11312, http://digital.library.aist.org/categories/2020aistechconferenceproceedings-pr.htm, DOI 10.33313/380/120.

• M. Roman, D. Balogun,  Rex E. Gerald, Laura Bartlett, Jie Huang, and R. J. O’Malley, “Peritectic Behavior Detection in the Fe-C-Mn-Al-Si Steel System using Fiber Optic Temperature Mapping”, Proc. AISTech 2020, PR-380-087.13370, http://digital.library.aist.org/categories/2020aistechconferenceproceedings-pr.htm, DOI 10.33313/380/087.

• M. Varadarajan,  L. Bartlett, S. Lekakh, M. Buchely and R. J. O’Malley, “The Influence of Ti, Nb and V on the Hot Ductility of as Cast Microalloyed Steels”, Proc. AISTech 2020, PR-380-158.14297, http://digital.library.aist.org/categories/2020aistechconferenceproceedings-pr.htm, DOI 10.33313/380/158.

• S. Ganguly, K. Chandrashekhara, M. F. Buchely, S. Lekakh, and R. J. O’Malley, “A modified Johnson-Cook model incorporating the effect of grain size on flow stress”, Proc. AISTech 2020, PR-380-174.15820 , http://digital.library.aist.org/categories/2020aistechconferenceproceedings-pr.htm, DOI 10.33313/380/174.

• Xueliang Zhang, Simon N. Lekakh, Ronald J. O'Malley, Eduardo Scheid, Mark Emmendorfer, and Mike Fox, Proc., "Effect of V and Al Grain Refining Treatment on Steel Machinability", Symposium on Advanced Shaping & Forming for Metal Manufacturing, MS&T 2020, Pittsburgh, PA, October 2019.

• Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, “Effect of Physical State of Non-metallic Inclusions on the Accumulation and Distribution within Magnesia-Stabilized Zirconia Foam Filter”, AISTech2019, Pittsburgh, PA, May, 2019.

• Koushik K. Balasubramanian, Soumava Chakraborty, Laura Bartlett, Ronald O'Malley, Mingzhi Xu, “Filtration efficiency of inclusions in FeMnAl steels”, 123rd Metalcasting Congress, Atlanta, GA, April 2019.

• Mark Emmendorfer, Simon N. Lekakh, Laura N. Bartlett, Ronald J. O’Malley, “Effect of Aluminum and Vanadium Fine Grain Practice on the Machinability of 4140 Steel”, Proc., MS&T 2018, Columbus, OH, Oct. 2018.

• Mark Emmendorfer, Simon N. Lekakh, Laura N. Bartlett, Ronald J. O’Malley, “An Investigation of the Machinability of Abrasion Resistant AR450 Steel, Proc., MS&T 2018, Columbus, OH, Oct. 2018.

• Obinna M. Adaba, Ronald J. O’Malley, Mingzhi Xu, Laura N. Bartlett, “Size Distribution Evolution of Inclusions in Aluminum Killed - Calcium Treated Steel During Steelmaking, Casting and Hot Rolling”, Proc. 10th International Conference and Exhibition on CLEAN STEEL, 18 - 20, Budapest, Hungary, Sept. 2018.

• M.F. Buchely, X. Wang, D.C. Van Aken, R.J. O’Malley, S.N. Lekakh1, K. Chandrashekhara, “Rolling Pressures during the Hot-Roll of Three Different Steel Plates: Experimental, Analytical and FEA”, Proc., 2nd International Symposium on the Recent Developments in Plate Steels, Orlando, FL, June 3-6, 2018.

• X. Wang, S. Ganguly, K. Chandrashekhara, M. F. Buchely, S. N. Lekakh, D. C. Van Aken and R. J. O’Malley, D. Bai, Y. Wang, and T. Natarajan, “Modeling and Simulation of Mass Flow of Steel Plate/Slab during Hot Rolling”, Proc., AIST 2nd International Symposium on the Recent Developments in Plate Steels, Orlando, FL, June 3-6, 2018.

• Dustin A. Arvola, Ronald J. O’Malley, Simon N. Lekakh, Laura N. Bartlett, “Effect of Phase Solidification Sequence in Stainless Steel on Grain Refining Efficiency”, Proc., AISTech 2018, Philadelphia, PA, May 2018.

• Obinna M. Adaba, Ronald J. O’Malley, Mingzhi Xu, Laura N. Bartlett, Simon N. Lekakh, "Three-Dimensional Study of Inclusion Size Distribution and Morphology in Mn-Si Killed Steel", Proc., AISTech 2018, Philadelphia, PA, May 2018.

• Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Mingzhi Xu, “Efficiency of Solid Inclusion Removal from the Steel Melt by Ceramic Foam Filter: Design and Experimental Validation”, Proc., AFS 122nd Metalcasting Congress, Ft. Worth, TX, April 3-5, 2018 (AFS best paper award).

• Obinna Adaba, Laura Bartlett, Mingzhi Xu and Ronald J. O’Malley, “Factors Affecting the Evolution of Inclusion Population During Steelmaking and Casting”, Proc., STIS 2017, 3rd International Conference on Ironmaking and Steelmaking, IIT Kanpur, India, Dec 11-13, 2017, pp. 55-58 (Keynote paper).

• M.F. Buchely, D.C. Van Aken, R.J. O’Malley, S. Lekakh, K. Chandrashekhara, “Hot Rolling effect upon the High Temperature Johnson-Cook Strength and Failure models for a 15V38 Grade Steel”, Proc., MS&T17, Pittsburgh, PA, Oct. 8-12, 2017.

• Tarak Amine, Joseph W. Newkirk and Ronald O’Malley, “Evaluating Material Property Variations in Components with Difficult Geometries”, Proc. International Mechanical Engineering Congress & Exposition, ASME, Tampa, FL, November 3-9, 2017.

• Mario Buchely, David Van Aken, Ronald O'Malley, K. Chandrashekhara, Simon Lekakh, “Hot Rolling Effect upon  High Temperature Johnson-Cook Strength and Failure Models for a 15V38 Grade Steel”, Proc., MS&T17, Pittsburgh, PA, October 2017, pp. 1045-1053.

• Zachary T. Hilton, Joseph W. Newkirk, and Ronald J. O’Malley, “Studying Chromium and Nickel Equivalency to Identify Viable Additive Manufacturing Stainless Steel Chemistries”, Proc., 28th Annual International Solid Freeform Fabrication Symposium, Zachary, August,7-9, 2017.

• R. J. O’Malley, E. I. Peterson, J. D. Smith, S. Jauch, M. McClymonds, and N. Sutcliffe, “Influence of Mold Flux Crystallite Film Fracture on Thermal Fluctuations in a Thin Slab Funnel Mold”, Proc., AISTech 2017, Nashville, TN, May 2017.

• R. J. O’Malley, “Inclusion Evolution and Removal in Ladle Refining”, Proc., AISTech 2017, Nashville, TN, May, 2017 (AIST best paper award, Peaslee award, Fruehan award).

• E. I. Peterson, T. P. Sander, J. D. Smith, and R. J. O’Malley, “Investigation of Mold Flux Crystallization by Rapid Quenching and Isothermal Aging in Molten Tin”, Proc., AISTech 2017, Nashville, TN, May 2017.

• Obinna Adaba, Pallava Kaushik, Ronald J. O’Malley, Simon N. Lekakh, Von L. Richards, Erik Mantel, Randy Hall, Eric J. Ellis, “Characteristics of Spinel Inclusions Formed after Reoxidation of Calcium Treated Aluminum Killed Steel”, Proc. AISTech 2016, Pittsburgh, June 2016.

• Andrew A. Russo, Jeffrey D. Smith, Ronald J. O’Malley, Von L. Richards, “Mechanism for Carbon Transfer from Magnesia-Graphite Ladle Refractories to Ultra-Low Carbon Steel”, Proc. AISTech 2016, Pittsburgh, June 2016.

• E. Nolte, J. Smith, M. Frazee, N. Sutcliffe, R. O’Malley, “Application of Cathodoluminescence in Analyzing Mold Flux Films”, Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016, Seattle, Washington, May 2016, pp. 317-325.

• Andrew A. Russo, Jeffrey D. Smith, Ronald J. O’Malley, Von L. Richards, “Kinetics of Carbon Transfer from Magnesia-Graphite Ladle Refractories to Ultra-Low Carbon Steel” Proc., St. Louis Section/RCD 52nd Annual Symposium, St. Louis, March 2016.

• Obinna Adaba, Marc Harris, Ronald J. O’Malley, Simon N. Lekakh, Von L. Richards and Neil Sutcliffe, “An SEM/EDS Statistical Study of the Effect of Mini-Mill Practices on the Inclusion Population in Liquid Steel”, Proc. Clean Steel 9, 9th International Conference and Exhibition on Clean Steel, September 8-10, 2015, Budapest, Hungary, Chapter 4, Paper 5.

• Marc Harris, Von L. Richards, Ron O’Malley, Simon Lekakh, “Evolution of Non-Metallic Inclusions in Foundry Steel Casting Processes”, Proc. 69th Annual Technical and Operating Conference, Chicago, December 2015.

• Marc Harris, Obinna Adaba, Simon Lekakh, Ron O’Malley, and Von L. Richards, “Improved Methodology for Automated SEM/EDS Non-Metallic Inclusion Analysis of Mini-Mill and Foundry Steels”, Proc. AISTech 2015, Cleveland, May 4-7, 2015, pp. 2315-2325.

• S. A. Rummel, S. N. Lekakh, D. C. Van Aken, R. J. O’Malley, X. Wang and K. Chandrashekhara, “High Strain Rate Hot Deformation of Steels: Measurement and Simulation”, Proc. International Conference on Advances in Product Metallurgy of Long and Forged Products, Vail, CO, July 2015.

• X. Wang and K. Chandrashekhara, S. A. Rummel, S. Lekakh, D. C. Van Aken and R. J. O’Malley, “Modeling and Simulation of Hot Rolling using Nonlinear Material Models”, Proc. International Conference on Advances in Product Metallurgy of Long and Forged Products, Vail, CO, July 2015.

• Gun Ge, Simon Lekakh, Von Richards, and Ron O’Malley, “Enhancing Grain Refinement of Austenitic Steel with Ti Additions by Melt Treatment Sequence Optimization”, Presentation, AISTech 2015, Cleveland, May 4-7, 2015.

• M. Kapoor, R. O’Malley, G. Thompson, Proc. “Atom Probe Compositional Analysis of Nanoscale Carbide and Carbo-Nitride Precipitates in Nb-Ti-Microalloyed Steels”, Materials Science & Technology 2014, Indianapolis, 2014.

• Madeline Rembold, Oscar Chahin, Neal Ross, Bob Williams, Ron O’Malley, "Investigation of Stopper Rod Tip Wear on a Thin-Slab Caster", Proc. AISTech 2014, May 5-8, 2014, Indianapolis, IN, 2014. 

• V.S.A. Challa, R.D.K. Misra, R. O’Malley, S.G. Jansto, "The Effect of Coiling Temperature on the Mechanical Properties of Ultrahigh-Strength 700 MPA Grade Processed via Thin-Slab Casting", Proc. AISTech 2014, May 5-8, 2014, Indianapolis, IN, 2014. 

• J. F. Elliott and R. J. O'Malley, “Chemical and Physical Changes Occurring as Oxide and DRI Pellets are Heated in Liquid Slags”, Proc., Sixth International Iron and Steel Congress, 1990, Nagoya, ISIJ, pp. 131-138.

• Q. T. Fang, P.N. Anyalebechi, R. J. O'Malley, and D. A. Granger, “Effect of Solidification Conditions on Hydrogen Porosity Formation in Directionally Solidified Aluminum Alloys”, Proc. Solidification Processing 1987, Sept. 21-24, 1987.

• R. J. O'Malley and M. E. Karabin, “A Theoretical and Experimental Study of the Roll Casting Process”, Proc., Modeling and Control of Casting and Welding Processes, S. Kou and R. Mehrabian, ed., AIME, 1986, pp. 149-168.

• R. J. O'Malley and J. F. Elliott, “Heating and Melting of DRI in Electric Furnace Slags”, Proc., 69th Steelmaking Conference, 5th International Iron and Steel Congress, Washington, DC, April 1986, pp. 923-927.

• R. J. O'Malley and J. F. Elliott: “A Physical Model of the Melting of DRI Pellets in Arc Furnaces”, Proc., Symposium on Chemical Engineering in Process Metallurgy, Paper 23c, AICh.E. Fall Meeting, Cleveland, Ohio, Aug. 30 - Sept. 3, 1982.

• D. Apelian, R. J. O'Malley, and C. E. Dremann, “Injection of Non-Buoyant Particles”, Proc., Scaninject II, 2nd International Conference on Injection Metallurgy, Lulea, Sweden, June 12-13, 1980, pp. 7:1-7:33.

Book Contributions

• Tihe Zhou, Ronald J. O’Malley, Hatem S. Zurob, Mani Subramanian, Sang-Hyun Cho and Peng Zhang, Continuous Casting, MDPI Books, Michael Vynnycky (Ed.), Reprinted from: Metals, “Control of Upstream Austenite Grain Coarsening during the Thin-Slab Cast Direct-Rolling (TSCDR) Process”, July, 2019, pp. 185-202. ISBN 978-3-03921-321-4.

• R. J. O’Malley, Inclusion Engineering and Clean Steels, Kent D. Peaslee Commemorative Volume, Chapter 2: “Inclusion Evolution and Removal in Ladle Refining”, AIST, Warrendale, PA, 2019, ISBN: 978-1-935117-81-0.

• Johannes (Hans) Schade, Ronald J. O’Malley, Frank L. Kemeny, Yogeshwar Sahai, Donald J. Zacharias, , Chapter 13 Tundish Operations, The Making Shaping and Treating of Steel, Casting Volume, 11th Edition, Alan W. Cramb, Editor. AIST, Warrendale, PA, 2010, ISBN-13: 978-0930767044.

Patents

• Provisional Patent Application 63/263,420 filed on November 2, 2021, Optical Fiber Interferometry Sensor for High Temperature Mold Gap Measurement, to Jie Huang, Ronald O’Malley, Dinesh Reddy Alla, Deva Prasaad Neelakandan, and Muhammad Roman.

• Provisional Patent Application 63/447,594 filed on February 22, 2023, In-Situ High-Temperature Raman Spectroscopy Via Remote Fiber-Optic Raman Probe, to Ronald O’Malley, Jie Huang, Bohong Zhang, and Hanok Tekle.

• US Patent No. 10,465,258, Grain Refinement of Iron-Based Materials, Issued November 5, 2019 to Simon Lekakh, Von Richards, Ronald O'Malley, Jun Ge.

• US Patent No. 6,474,402, Segmented Roll for Casting Metal Strip, Issued Nov. 5, 2002, to J. R. Suer, R. J. O’Malley and R. S. Williams.

• US Patent No. 5,651,412, Method of Applying a Wetting Flux to a Strip Casting Roll, Issued July 29, 1997, to R. S. Williams, R. J. O’Malley, and R. C. Sussman.

Invited & Keynote Presentations

• R.J. O’Malley, “Fiber Optic Sensing Technologies Supporting Advancements in Steel Production and the Shift to Industry 4.0”, 100th Anniversary Henry Marion Howe Memorial Lecture Award, AISTech 2023, Detroit, MI, May 2023.

• R.J. O’Malley, “New Fiber Optic Sensor Developments for Applications in Steel Manufacture”, 4th International Conference on Science and Technology of lronmaking & Steelmaking (STIS-2022), IIT Bombay, India, December 2022.

• R.J. O’Malley, “New Fiber Optic Sensor Developments for Applications in Steel Manufacture”, Steel Founders’ Society of America National T&O Workshop, Chicago, IL, Dec 7, 2022.

• R. J. O’Malley, “Advancements in the Use of Fiber Optic Sensors in Metals Casting and Steel Manufacture”, MTI AmeriTAC 138 Conference, Kansas City, MO, June 22, 2022.

• R. J. O'Malley, " Advancements in the Use of Fiber Optic Sensors in Metals Casting and Steel Manufacture” Colorado School of Mines ME Distinguished Guest Seminar Series, January 25. 2022.

• R. J. O'Malley, " Inclusion Characterizations in Steels”, Solutions for Nano Analysis Podcast, Bruker Nano Analytics, Oct 7, 2021. https://solutionsfornanoanalysis.transistor.fm/episodes/inclusion-characterizations-in-steels?utm_campaign=Oktopost-BNA&utm_content=Oktopost-linkedin-&utm_medium=social&utm_source=linkedin

• R. J. O'Malley, "President’s Award Breakfast State of the Association Presentation” AISTech 2021, Nashville, TN, June 30, 2021.

• R. J. O'Malley, "A Tour of the Peaslee Steel Manufacturing Research Center” AIST St Louis Chapter Dinner Meeting, Rolla, MO, February 13, 2020.

• R. J. O'Malley, "Collaborative R&D in Steel Manufacture at the Peaslee Steel Manufacturing Research Center” AIST Midwestern Chapter Dinner Meeting, Merrilleville, IN, February 11, 2020.

• R. J. O'Malley, "Collaborative R&D in Steel Manufacture at the Peaslee Steel Manufacturing Research Center” AIST Northern Chapter Dinner Meeting, Burlington, ON, February 4, 2020.

• R. J. O'Malley, " Collaborative R&D in Steel Manufacture at the Peaslee Steel Manufacturing Research Center” AIST Detroit Chapter Dinner Meeting, Southgate, MI, November 12, 2019.

• R. O’Malley, “Steelmaking Research through Industry–University Collaboration at the PSMRC”, European Steel Forum, Leoben Austria, Oct 23-25, 2019.

• R. J. O'Malley, " Collaborative R&D in Steel Manufacture at the Peaslee Steel Manufacturing Research Center” AIST Saint Louis Chapter Dinner Meeting, Edwardsville, IL, October 16, 2019.

• R. J. O'Malley, "Inclusion Characterization, 3D Visualization and Distributed Fiber Optic Sensor Developments for Metal Manufacturing", AIST Metallurgy Steelmaking and Casting and Computer Applications Technology Joint Committee Meeting, Livermore, CA, Oct 10, 2019.

• R. J. O'Malley, "Observations of Inclusion, Steel and Refractory Interactions in Steel Processing", Bernard Aimes Seminar, University of Alabama, January 2019.

• R. J. OMalley, “The Role of Rapid Technology Advances and Socio-Environmental Drivers on the Evolution of Process and Product Developments in Steel”, Alpha Sigma Mu Lecture, MS&T, October 2018.

• R.J. OMalley, “Inclusion Related Research at the Kent D. Peaslee Steel Manufacturing Research Center“, AIST CCTC Meeting Darlington, SC, Feb, 2018.

• R.J. O’Malley, “The Evolution of Inclusion Populations during Ladle Refining and Continuous Casting”, R.J. Lee Inclusions Workshop, Pittsburgh, PA, Dec, 2017.

• R.J. O’Malley, “Factors Affecting the Evolution of Inclusion Population During Steelmaking and Casting”, STIS 2017, 3rd International Conference on Ironmaking and Steelmaking, IIT Kanpur, India, Dec 11-13, 2017. Keynote Lecture.

• R. J. O’Malley, “Inclusion Evolution and Removal in Ladle Refining”, AISTech 2017, Kent. D. Peaslee Clean Steel Session, Nashville, TN, May, 2017.

• R.J. OMalley, “University Steel Center Facility Gaps in the US“, Arkansas State University, Jonesborough, AK, Oct, 2016.

• R. J. OMalley, “Select Topics on Clean Steel and Quality”, 5th Course on High Quality Steels, University of Science and Technology Beijing, Beijing China, June 2016.

• Ronald J. O’Malley, "Steel Related Refractory Research at the PSMRC”, St. Louis Section/RCD 52nd Annual Symposium, St. Louis, March 2016.

• R.J. O’Malley, “Processes, Equipment, and Tools Used in Steel Research and Manufacturing” ASM Materials Camp, Rolla, MO July 2015.

• R.J. O’Malley, “Undergraduate Research – An Experience worth Pursuing”, Undergraduate Research Conference, Rolla, June 2015 (Invited)..

• R.J. O’Malley, “Tunnel Furnace Operating Issues Affecting Quality “, Bricmont Tunnel Furnace Seminar, Cannonsburg, PA, Sept 2014.

• R.J. O’Malley, “An Update on Inclusion Research in the PSMRC”, ArcelorMittal Mini-Conference on Inclusions, Chicago, July, 2014.

• R.J. O’Malley, “Influence of Rolls, Nozzles & Mold Coppers on Caster Operation and Slab Quality”, VAI Maintenance Conference, ST. Petersburg, FL, April, 2014.

• R. O’Malley, “Mold Flux Films and Mold Thermal Behavior”, Invited Lecture, McGill University FactSage Consortium Meeting, May 2013.

• R. O’Malley, “API Steel Coil and Plate Production”, R. O'Malley, Invited Lecture, Pipeliners Club of Atlanta, Atlanta, GA, Nov. 2011.

• R. O’Malley, “Everything a Product Metallurgist Needs to Know About Continuous Casting” Invited Lecture, ASPPRC Spring Meeting, Colorado School of Mines, March 2010.

• R.J. O’Malley, “Tunnel Furnace Operating Issues Affecting Quality”, Bricmont Tunnel Furnace Seminar, Pittsburgh, PA, Sept. 2006.

• R.J. O’Malley, “Some Operational Aspects of Mold Level Control in the Continuous Casting of Steel” AIST Continuous Casting Sub-Committee Meeting, Baltimore, MD, Oct. 2005.

• R. J. O'Malley and M. E. Karabin, “A Theoretical and Experimental Study of the Roll Casting Process”, Proc., Modeling and Control of Casting and Welding Processes, S. Kou and R. Mehrabian, ed., AIME, 1986, pp. 149-168.

• R. J. O'Malley and J. F. Elliott, “Heating and Melting of DRI in Electric Furnace Slags”, Proc., 69th Steelmaking Conference, 5th International Iron and Steel Congress, Washington, DC, April 1986, pp. 923-927.

• R. J. O'Malley and J. F. Elliott: “A Physical Model of the Melting of DRI Pellets in Arc Furnaces”, Proc., Symposium on Chemical Engineering in Process Metallurgy, Paper 23c, AICh.E. Fall Meeting, Cleveland, Ohio, Aug. 30 - Sept. 3, 1982.

Conference Presentations

• R. J. O’Malley, “High Temperature Optical Fiber Interferometer Mold Gap Measurement for Use in Foundry and Continuous Casting Molds”, SFSA-DLA SPI Annual Review, Virtual, April 13, 2022.

• R. J. O’Malley, “Industrial Support for Undergraduate Research in the PSMRC”, Undergraduate Global University Session, MS&T 2020, Pittsburgh, PA, October 2019.

• Xueliang Zhang, Simon N. Lekakh, Ronald J. O'Malley, Eduardo Scheid, Mark Emmendorfer, and Mike Fox, Proc., "Effect of V and Al Grain Refining Treatment on Steel Machinability", Symposium on Advanced Shaping & Forming for Metal Manufacturing, MS&T 2020, Pittsburgh, PA, October 2019.

• R. J. O’Malley, “Inclusion Evolution and Removal in Ladle Refining”, Proc., AISTech 2017, Nashville, TN, May, 2017.

• R. J. O’Malley, E. I. Peterson, J. D. Smith, S. Jauch, M. McClymonds, and N. Sutcliffe, “Influence of Mold Flux Crystallite Film Fracture on Thermal Fluctuations in a Thin Slab Funnel Mold”, Proc., AISTech 2017, Nashville, TN, May 2017.

• Ronald J. O’Malley, "Steel Related Refractory Research at the PSMRC”, St. Louis Section/RCD 52nd Annual Symposium, St. Louis, March 2016.

• R.J. OMalley, J. Watsinger, F. Wimmer, “409 Casting Trials with Parabolic Mold Taper at AK Steel's Mansfield Operations Using VAI's DIAFACE ® Mold Technology” CCC 2000 - Proceedings of the 8th Continuous Casting Conference, Linz, Austria, paper 9, June 5-7, 2000.

• R. J. O’Malley and J. Neal, “An Examination of Mold Flux Film Structures and Mold Gap Behavior Using Mold Thermal Monitoring and Petrographic Analysis at Armco’s Mansfield Operations”, Proc. METEC Congress 99, Dusseldorf, June 13-15, 1999.

• R. J. O’Malley, “Observations of Various Steady State and Dynamic Thermal Behaviors in a Continuous Casting Mold”, Proc. 82nd Steelmaking Conf., ISS, Chicago, IL, March 21-24, 1999.

• R. J. O’Malley, O. Silbermann, and J. Watsinger, “Carbon and Stainless Steel Quality Results from Armco Mansfield’s Thin Slab Casting and Direct Rolling Facility using VAI’s CONROLLÔ Technology”, Proc., 56th Electric Furnace Conf., ISS, New Orleans, LA, November 21-24, 1998.

• R. O’Malley and J. Watsinger, “Direct Hot Charged Stainless Performance at Armco Mansfield”, Adv. Tech. Symposium. The High Performance Steel Plant, Baltimore, MD, Oct 4-6, 1998.

• R. J. O’Malley, “Casting Technologies Supporting the Development of Direct Hot Charged Carbon and Stainless Steel Production at Armco’s Mansfield Operations”, Proc., 39th Mechanical Working and Steel Processing Conf., ISS, Indianapolis, IN, 19-22 October 1997.

• R. J. O’Malley, A. J. Flick, and G. Hohenbichler, “Thin Slab Casting Practice Development at Armco’s Mansfield Operations”, Proc., CCC’96, Linz, Austria, May 1996, Slab Session - Paper 16.

Contributed Presentations

• Joe Govro, Ron OMalley, “Investigations in Hydrogen Ironmaking”, European Academic Symposium on EAF Steelmaking - EASES, Oulu, Finland on the 05-07 June 2023.

• Bohong Zhang, Hanok Tekle, Jeff Smith, Todd Sander, Ronald O’Malley, Jie Huang, “The Study of the Behavior of CaO-SiO2-Al2O3-Na2O-Based Mold Flux in 1400C by a Fiber-Optic Raman Sensor”, AISTech 2023, Detroit, MI, May 2023.

• Bohong Zhang, Hanok Tekle, Jeff Smith, Todd Sander, Ronald O’Malley, Jie Huang, “Fiber-Optic Raman Probe for On-line EAF Slag Analysis”, AISTech 2023, Detroit, MI, May 2023.

• Hanok Tekle, Muhammad Roman, Dinesh Reddy Alla, Jeff Smith, Todd Sander, Ronald OMalley, Jie Huang, “Distributed Temperature Monitoring of Tundish Refractory Lining using Optical Fiber Sensors”, AISTech 2023, Detroit, MI, May 2023.

• Katelyn Kiser, Viraj A. Athavale, Mario Buchely, Laura N. Bartlett, Ronald J. O’Malley, “In-Situ Observation of the Solidification of X70 Steel Using High-Temperature Laser-Scanning Confocal Microscope”, AISTech 2023, Detroit, MI, May 2023.

• T.P. Ojiako, V. A. Athavale, R. Osei, M.F. Buchely, L. N Bartlett, S. Lekakh, R.J. O’Malley, “Investigating the Effect of Different Descale Nozzle Types and Jet Angles on Scale Removal”, AISTech 2023, Detroit, MI, May 2023.

• Joe Govro, Ronald OMalley, “Hydrogen DRI: The Effect of Carbon Content on Melting Behavior”, AIST Scrap Supplements and Alternate Ironmaking 9, Orlando, FL, March 6-8, 2023.

• V.A. Athavale, K. Tochukwu Amatanweze, S. Chokraborty, M.F. Buchely, L.N. Bartlett, R.J. O’Malley, K. Limmer, K. Sebeck, D. M. Field, “Effect of thermomechanical processing and heat treatment on mechanical properties and fracture behavior of a Cr-Ni-Mo-V ultra-high-strength steel”, DOD 2022 Steel Summit.

• Rogerio Cordosa, Mike Piston, Mario Buchely, Laura Bartlett, Ron O’Malley, Krista Limmer, Daniel Field, “Effect of Nb on the recrystallization kinetics of a Fe-Mn-Ni-Al steel”, 2022 DoD Steels Summit, Aberdeen Proving Ground, MD hosted by DEVCOM, ARL) and GVSC, Nov 15-16, 2022.

• V. Athavale, “A direct comparison of mechanical properties of a Cr-Ni-Mo-V ultra high-strength steel produced by three different routes- Casting, partially rolled, and wrought”, 2022 DoD Steels Summit, Aberdeen Proving Ground, MD hosted by DEVCOM, ARL) and GVSC, Nov 15-16, 2022.

• Viraj Ashok Athavale ,“In-situ Laser Confocal Microscopic Analysis of Phase Transformations in Cr-Ni-Mo and Cr-Mo High-strength Steels Coupled with Dilatometric Study”, MS&T22, Pittsburgh, Oct, 2022.

• Yuri Korobeinikov, Amogh Meshram, Seetharaman Sridhar, Ronald OMalley, “Grid Interactive Hydrogen Steelmaking (GISH) – Towards Decarbonization of Steel Industry”, MS&T22, Pittsburgh, Oct, 2022.

• Muhammad Roman, Damilola Balogun, Laura Bartlett, Ronald OMalley, Rex Gerald, Jie Huang, “Optical Fiber Temperature Sensors Embedded in a Metal Casting Mold”, poster presentation, 27th International Conference on Optical Fiber Sensors, Alexandria, VA, August, 2022.

• Bohong Zhang, Hanok Tekle, Laura Bartlett, Rex E. Gerald, Jie Huang, Ronald OMalley, "High-Temperature Fiber-Optic Raman Sensor for Steel Manufacturing", SPIE Defense + Commercial Sensing Conf., Orlando, FL, April 3-7, 2022.

• Dinesh Reddy Alla, Deva Prasad Neelakandan, Laura Bartlett, Ronald OMalley, Jie Huang, "High Temperature Fiber Optic Sensors for Steel Industry Applications", SPIE Defense + Commercial Sensing Conf., Orlando, FL, April 3-7, 2022.

• J. M. Summers, L. Bartlett, R. O’Malley, M.F. Buchely, R. Pilon, “Evaluation of notch toughness after simulated ring-rolling on AISI 1070 grade steel wheel castings”, AFS Metalcasting Congress 2022, Columbus, OH, April 23-26, 2022 – AFS 2023 Best Paper Award.

• R. Cardoso, M.F. Buchely, V.A. Athavale, S. Chakraborty, R.J. O’Malley, L.N. Bartlett, Krista Limmer, Katherine Sebeck, Daniel Field, “High-Temperature Compression Behavior and Phase Transformations During Continuous Cooling of a Low-Alloy Cr-Ni-Mo Ultra-High Strength Steel”, AISTech 2022, Pittsburgh, 2022.

• Katelyn Kiser, Simon Lekakh, Mario Buchely, Viraj A. Athavale, Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Krista Limmer, Katherine Sebeck, Daniel Field, “Evaluating the Onset of Hot Tearing in High-Strength and Lightweight Steels Using Controlled Deformation Testing”, AISTech 2022, Pittsburgh, 2022.

• Richard Osei, Dmitry Tsvetkov, Tony Bader, Simon Lekakh, Ronald O’Malley, “Effect of Mold Powder Residue on Thin Cast Slab Scale Structure Evolution During Reheating and Descaling”, AISTech 2022, Pittsburgh, 2022.

• J. Govro, A. Meena, S. Chakraborty, A. Meshram, I. Korobeinikov, K. Phillips, V. Athavale, L. Bartlett1, J. Smith, A. Emdadi, S. Seetharaman, R. O’Malley, “Melting Behavior of Hydrogen-Reduced DRI in a Simulated EAF Steel Bath”, AISTech 2022, Pittsburgh, 2022.

• Amogh Meshram, Joe Govro, Yuri Korobeinikov, Soumava Chakraborty, Ronald J. OMalley, Sridhar Seetharaman, “Modelling of Isothermal Reduction of Hematite Pellets using Hydrogen”, AISTech 2022, Pittsburgh, 2022.

•  A. Emdadi, S. Seetharaman, R. O’Malley, Amogh Meshram, Joe Govro, Yuri Korobeinikov, Soumava Chakraborty, Ronald J. OMalley, Sridhar Seetharaman, “Modelling of Isothermal Reduction of Hematite Pellets using Hydrogen”, AISTech 2022, Pittsburgh, 2022.

• Deva Prasaad Neelakandan, Muhammad Roman, Damilola Balogun, Dinesh Reddy Alla, Chen Zhu, Laura Bartlett, Rex E. Gerald, Jie Huang and Ronald J. O’Malley, “Distributed Temperature and Gap Measurements at the Metal-Mold Interface during Aluminum Casting using Optical Fiber Sensors”, AFS CastExpo Metalcasting Congress, Columbus, OH, April 23-28, 2022.

• Tyler Richards, Jeffrey Smith, Ronald O’Malley, Todd Sander, “Interactions Between Glazed Carbon-Bearing Refractories and Molten Steel”, UNITECR 2022, Chicago, March 15-18, 2022.

• Tyler Richards, Jeffrey Smith, Ronald O’Malley Todd Sander, “Impact of Olivine on Refractory Corrosion Resistance”, UNITECR 2022, Chicago, March 15-18, 2022.

• Tyler Richards, Jeffrey Smith, Ronald O’Malley Todd Sander, “Comparison of Two Dry Vibratable Tundish Linings Through Laboratory Experiments”, UNITECR 2022, Chicago, March 15-18, 2022.

• Zane Voss, Jeremy Jones, Ron O’Malley, Sridhar Seetharaman, Euan Evenson, “IDEAS: Intelligent Dynamic EAF Advisory System”, EASES - 4th European Academic Symposium on EAF Steelmaking, RWTH Aachen University, 16-18 June 2021.

• Laura Bartlett, Michael Piston*, Ron O’Malley, Krista Limmer, and Daniel Field, “Ni-containing Fe-Mn-Al-C alloys for high strength applications”, FeMnAl Technical Review Meeting 2020, LIFT, June, 2020.

• “Understanding the Effect of Nickel on the Microstructure of Low Density FeMnAl Steels”, Advanced High Strength Steels IV, 2020 TMS Annual Meeting & Exhibition, San Diego, CA, Feb. 26, 2020.

• Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, “Effect of Physical State of Non-metallic Inclusions on the Accumulation and Distribution within Magnesia-Stabilized Zirconia Foam Filter”, AISTech2019, Pittsburgh, PA, May, 2019.

• Mark Emmendorfer, Simon N. Lekakh, Laura N. Bartlett, Ronald J. O’Malley, “Effect of Aluminum and Vanadium Fine Grain Practice on the Machinability of 4140 Steel”, Proc., MS&T 2018, Columbus, OH, Oct. 2018.

• Mark Emmendorfer, Simon N. Lekakh, Laura N. Bartlett, Ronald J. O’Malley, “An Investigation of the Machinability of Abrasion Resistant AR450 Steel, Proc., MS&T 2018, Columbus, OH, Oct. 2018.

• Obinna M. Adaba, Ronald J. O’Malley, Mingzhi Xu, Laura N. Bartlett, “Size Distribution Evolution of Inclusions in Aluminum Killed - Calcium Treated Steel During Steelmaking, Casting and Hot Rolling”, Proc. 10th International Conference and Exhibition on CLEAN STEEL, 18 - 20, Budapest, Hungary, Sept. 2018.

• M.F. Buchely, X. Wang, D.C. Van Aken, R.J. O’Malley, S.N. Lekakh1, K. Chandrashekhara, “Rolling Pressures during the Hot-Roll of Three Different Steel Plates: Experimental, Analytical and FEA”, Proc., 2nd International Symposium on the Recent Developments in Plate Steels, Orlando, FL, June 3-6, 2018.

• X. Wang, S. Ganguly, K. Chandrashekhara, M. F. Buchely, S. N. Lekakh, D. C. Van Aken and R. J. O’Malley, D. Bai, Y. Wang, and T. Natarajan, “Modeling and Simulation of Mass Flow of Steel Plate/Slab during Hot Rolling”, Proc., AIST 2nd International Symposium on the Recent Developments in Plate Steels, Orlando, FL, June 3-6, 2018.

• Dustin A. Arvola, Ronald J. O’Malley, Simon N. Lekakh, Laura N. Bartlett, “Effect of Phase Solidification Sequence in Stainless Steel on Grain Refining Efficiency”, Proc., AISTech 2018, Philadelphia, PA, May 2018.

• Obinna M. Adaba, Ronald J. O’Malley, Mingzhi Xu, Laura N. Bartlett, Simon N. Lekakh, "Three-Dimensional Study of Inclusion Size Distribution and Morphology in Mn-Si Killed Steel", Proc., AISTech 2018, Philadelphia, PA, May 2018.

• Soumava Chakraborty, Ronald J. O’Malley, Laura Bartlett, Mingzhi Xu, “Efficiency of Solid Inclusion Removal from the Steel Melt by Ceramic Foam Filter: Design and Experimental Validation”, Proc., AFS 122nd Metalcasting Congress, Ft. Worth, TX, April 3-5, 2018 (AFS best paper award).

• M.F. Buchely, D.C. Van Aken, R.J. O’Malley, S. Lekakh, K. Chandrashekhara, “Hot Rolling effect upon the High Temperature Johnson-Cook Strength and Failure models for a 15V38 Grade Steel”, Proc., MS&T17, Pittsburgh, PA, Oct. 8-12, 2017.

• Tarak Amine, Joseph W. Newkirk and Ronald O’Malley, “Evaluating Material Property Variations in Components with Difficult Geometries”, Proc. International Mechanical Engineering Congress & Exposition, ASME, Tampa, FL, November 3-9, 2017.

• Mario Buchely, David Van Aken, Ronald O'Malley, K. Chandrashekhara, Simon Lekakh, “Hot Rolling Effect upon  High Temperature Johnson-Cook Strength and Failure Models for a 15V38 Grade Steel”, Proc., MS&T17, Pittsburgh, PA, October 2017, pp. 1045-1053.

• Zachary T. Hilton, Joseph W. Newkirk, and Ronald J. O’Malley, “Studying Chromium and Nickel Equivalency to Identify Viable Additive Manufacturing Stainless Steel Chemistries”, Proc., 28th Annual International Solid Freeform Fabrication Symposium, Zachary, August,7-9, 2017.

• E. I. Peterson, T. P. Sander, J. D. Smith, and R. J. O’Malley, “Investigation of Mold Flux Crystallization by Rapid Quenching and Isothermal Aging in Molten Tin”, Proc., AISTech 2017, Nashville, TN, May 2017.

• Obinna Adaba, Pallava Kaushik, Ronald J. O’Malley, Simon N. Lekakh, Von L. Richards, Erik Mantel, Randy Hall, Eric J. Ellis, “Characteristics of Spinel Inclusions Formed after Reoxidation of Calcium Treated Aluminum Killed Steel”, Proc. AISTech 2016, Pittsburgh, June 2016.

• Andrew A. Russo, Jeffrey D. Smith, Ronald J. O’Malley, Von L. Richards, “Mechanism for Carbon Transfer from Magnesia-Graphite Ladle Refractories to Ultra-Low Carbon Steel”, Proc. AISTech 2016, Pittsburgh, June 2016.

• E. Nolte, J. Smith, M. Frazee, N. Sutcliffe, R. O’Malley, “Application of Cathodoluminescence in Analyzing Mold Flux Films”, Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016, Seattle, Washington, May 2016, pp. 317-325.

• Andrew A. Russo, Jeffrey D. Smith, Ronald J. O’Malley, Von L. Richards, “Kinetics of Carbon Transfer from Magnesia-Graphite Ladle Refractories to Ultra-Low Carbon Steel” Proc., St. Louis Section/RCD 52nd Annual Symposium, St. Louis, March 2016.

• Obinna Adaba, Marc Harris, Ronald J. O’Malley, Simon N. Lekakh, Von L. Richards and Neil Sutcliffe, “An SEM/EDS Statistical Study of the Effect of Mini-Mill Practices on the Inclusion Population in Liquid Steel”, Proc. Clean Steel 9, 9th International Conference and Exhibition on Clean Steel, September 8-10, 2015, Budapest, Hungary, Chapter 4, Paper 5.

• Marc Harris, Von L. Richards, Ron O’Malley, Simon Lekakh, “Evolution of Non-Metallic Inclusions in Foundry Steel Casting Processes”, Proc. 69th Annual Technical and Operating Conference, Chicago, December 2015.

• Marc Harris, Obinna Adaba, Simon Lekakh, Ron O’Malley, and Von L. Richards, “Improved Methodology for Automated SEM/EDS Non-Metallic Inclusion Analysis of Mini-Mill and Foundry Steels”, Proc. AISTech 2015, Cleveland, May 4-7, 2015, pp. 2315-2325.

• S. A. Rummel, S. N. Lekakh, D. C. Van Aken, R. J. O’Malley, X. Wang and K. Chandrashekhara, “High Strain Rate Hot Deformation of Steels: Measurement and Simulation”, Proc. International Conference on Advances in Product Metallurgy of Long and Forged Products, Vail, CO, July 2015.

• X. Wang and K. Chandrashekhara, S. A. Rummel, S. Lekakh, D. C. Van Aken and R. J. O’Malley, “Modeling and Simulation of Hot Rolling using Nonlinear Material Models”, Proc. International Conference on Advances in Product Metallurgy of Long and Forged Products, Vail, CO, July 2015.

• Gun Ge, Simon Lekakh, Von Richards, and Ron O’Malley, “Enhancing Grain Refinement of Austenitic Steel with Ti Additions by Melt Treatment Sequence Optimization”, Presentation, AISTech 2015, Cleveland, May 4-7, 2015.

• M. Kapoor, R. O’Malley, G. Thompson, Proc. “Atom Probe Compositional Analysis of Nanoscale Carbide and Carbo-Nitride Precipitates in Nb-Ti-Microalloyed Steels”, Materials Science & Technology 2014, Indianapolis, 2014.

• Madeline Rembold, Oscar Chahin, Neal Ross, Bob Williams, Ron O’Malley, "Investigation of Stopper Rod Tip Wear on a Thin-Slab Caster", Proc. AISTech 2014, May 5-8, 2014, Indianapolis, IN, 2014. 

• V.S.A. Challa, R.D.K. Misra, R. O’Malley, S.G. Jansto, "The Effect of Coiling Temperature on the Mechanical Properties of Ultrahigh-Strength 700 MPA Grade Processed via Thin-Slab Casting", Proc. AISTech 2014, May 5-8, 2014, Indianapolis, IN, 2014. 

• Madeline Rembold, Oscar Chahin, Neal Ross, Bob Williams, Ron O’Malley, "Investigation of Stopper Rod Tip Wear on a Thin-Slab Caster", Proc. AISTech 2014, May 5-8, 2014, Indianapolis, IN, 2014.

• V.S.A. Challa, R.D.K. Misra, R. O’Malley, S.G. Jansto, "The Effect of Coiling Temperature on the Mechanical Properties of Ultrahigh-Strength 700 MPA Grade Processed via Thin-Slab Casting", Proc. AISTech 2014, May 5-8, 2014, Indianapolis, IN, 2014. 

• J. Bentsman, B.G. Thomas, B. Petrus, X. Zhou, V. Natarajan, and R. O'Malley, “Hybrid Control of Continuous Casting for Whale and Crack Prevention and Resonance Control in Mold Oscillation System” Proceedings of 2011 NSF Engineering Research and Innovation Conference, Atlanta, Georgia, Grant # DMI-0900138.

• B.A. Blumhardt, J.G. Speer, D.K. Matlock, and R.J. O’Malley, “Influence of Chemical and Processing Variables on Annealing Response of Cold-Rolled Microalloyed Steels”, Proc., International Conference on Microalloyed Steels: Processing, Properties, Microstructure, and Performance, Pittsburgh, PA, 2007.

• B. Thomas, R. O’Malley, T. Shi, Y. Meng, D. Creech, and D. Stone, “Validation of Fluid Flow and Solidification Simulation of a Continuous Thin-Slab Caster”, Proc. MCWASP IX, Shaker Verlag, GmbH, Aachen, Germany, 2000, pp. 769-776.

• B. G. Thomas, R. J. O’Malley, and D. Stone, “Measurement of Temperature, Solidification, and Microstructure in a Continuous Cast Thin Slab”, Proc. Modeling of Casting, Welding & Advanced Solidification Processes III, Minerals, Metals & Materials Society, San Diego, CA, June 7-12, 1998, pp. 849-860.

• K. Morwald, J. Watsinger, and R. O’Malley, “Roll Load Measurements for Slab Casting”, Proc., Instrumentation and Control Developments in Steelmaking and Casting, The Royal Society, London, UK, 25-26 March 1997.

• J. F. Elliott and R. J. O'Malley, “Chemical and Physical Changes Occurring as Oxide and DRI Pellets are Heated in Liquid Slags”, Proc., Sixth International Iron and Steel Congress, 1990, Nagoya, ISIJ, pp. 131-138.

• Q. T. Fang, P.N. Anyalebechi, R. J. O'Malley, and D. A. Granger, “Effect of Solidification Conditions on Hydrogen Porosity Formation in Directionally Solidified Aluminum Alloys”, Proc. Solidification Processing 1987, Sept. 21-24, 1987.

• D. Apelian, R. J. O'Malley, and C. E. Dremann, “Injection of Non-Buoyant Particles”, Proc., Scaninject II, 2nd International Conference on Injection Metallurgy, Lulea, Sweden, June 12-13, 1980, pp. 7:1-7:33.