International/National Conferences

1. Nisar Khan, Ajay Kumar (2025). Fabrication of Ceria-Stabilized Zirconia and Polymer-Derived Ceramic Reinforced AA7075 Composites using Friction Stir Additive Manufacturing Process, American Society for Composites, 40th Technical Conference Dayton Convention Center, Dayton, OH October 6-8, 2025. https://ascdayton.com/ 

2. Nisar Khan, Ajay Kumar (2025). Mechanical and Microstructural Behavior of Friction Stir Powder Additive Manufactured Ceria-Stabilized Zirconia and Polymer-Derived Ceramic Reinforced AA7075 Composites, Materials Science & Technology (MS&T) Technical Meeting and Exhibition 2025: Lightweight Composites, Materials & Alloys.

Link: https://www.programmaster.org/PM/PM.nsf/ApprovedAbstracts/563808267FCA514A85258C7D00297BBD?OpenDocument 

3. Tumula Tirumala, Ajay Kumar (2025). Fabrication of Components with Integrated Cladding for HarshEnvironments through Casting. National Conference on Materials at Extreme Conditions (MAX 2025) IGCAR Kalapakkam 27-29 March 2025 (Poster) 

4. Ajay Kumar (2025). Effect of Intermetallic Content on Shear Deformation of Thin Solder Micro-Joints Between Copper Substrates, 13th Asia Pacific Microscopy Congress 2025 (APMC13), 2-7 February Brisbane, Australia 2025. https://www.scienceopen.com/hosted-document?doi=10.14293/APMC13-2025-0218, https://apmc2025.m.asnevents.com.au/schedule/author/622433  

5. Dipayan Chakraborty, Ajay Kumar (2025). Study on the Hot Deformation Behaviour of Ti-900 Alloy for Gas Turbine Compressor Blade Applications. International Mechanical Engineering Congress & Exposition India 10 - 13 September 2025 Hyderabad International Convention Center Hyderabad, India. https://www.asme-india.org/imece [Presentation]

6. Dipayan Chakraborty, Nisar Ahamad Khan, Hiren Singh, Ajay Kumar (2025). Influence of Heat Treatment on Microstructure and Tribological Properties of Aerospace-Grade Ti-900 Titanium Alloy. International Mechanical Engineering Congress & Exposition India 10 - 13 September 2025 Hyderabad International Convention Center Hyderabad, India. https://www.asme-india.org/imece [Publication]

7. Nisar Ahamad Khan, Ajay Kumar (2025). Friction Stir Powder Additive Manufacturing (FSPAM) of Ceramic Reinforced AA7075 Composites: Microstructural Evolution, Mechanical Properties and Applications International Mechanical Engineering Congress & Exposition India 10 - 13 September 2025 Hyderabad International Convention Center Hyderabad, India. https://www.asme-india.org/imece [Presentation]  

8. Ajay Kumar (2025). Effect of Inter-metallic Content on Shear Deformation of Thin Solder Micro-joints Between Copper Substrates. Oral Presentation 13th Asia Pacific Microscopy Congress 2025 MS04 - Materials for Electronics & Computing (semiconductors, magnetics, quantum). DOI: 10.14293/APMC13-2025-0218 https://www.science-open.com/hosted-document?doi=10.14293/APMC13-2025-0218

9. Chakraborty, D., Mandal, A., Prajapati, A., Kumar, A. (2024). Effect of Process Parameters on Mechanical Performances of 3D-Printed ABS Parts. In: Kumar, A., Srivatsan, T.S., Ravi Sankar, M., Venkaiah, N., Seetharamu, S. (eds) Processing and Fabrication of Advanced Materials, Volume 1. PFAM 2023. Springer Proceedings in Materials, vol 52. Springer, Singapore. https://doi.org/10.1007/978-981-97-5959-0_3     

10. Khan, N.A., Sankar, M.R., Kumar, A. (2024). State of the Art on Additive Manufacturing of Moulding Dies with Conformal Cooling Channels. In: Kumar, A., Srivatsan, T.S., Ravi Sankar, M., Venkaiah, N., Seetharamu, S. (eds) Processing and Fabrication of Advanced Materials, Volume 1. PFAM 2023. Springer Proceedings in Materials, vol 52. Springer, Singapore. https://doi.org/10.1007/978-981-97-5959-0_5

11. Khan, N.A., Chakraborty, D., Kumar, A. (2024). Optimization of Mechanical Properties for Spheroidal Graphite (SG) Iron Through Various Heat Treatment Processes. In: Kumar, A., Srivatsan, T.S., Ravi Sankar, M., Venkaiah, N., Seetharamu, S. (eds) Processing and Fabrication of Advanced Materials, Volume 1. PFAM 2023. Springer Proceedings in Materials, vol 52. Springer, Singapore. https://doi.org/10.1007/978-981-97-5959-0_23 

12. Tumula Tirumala, Ajay Kumar (2024). Reverse cladding of 304 stainless steel to LM25 aluminum alloy through die-casting. 78th Annual Technical Meeting of IIM, International Symposium on Transformational Technologies in Materials and Manufacturing 20-22 November 2024 GKVK Bengaluru India. https://iimatm.in/

13. Dipayan Chakraborty, Ajay Kumar (2024). Hot deformation characteristics and microstructural evolution of Ti-900 alloy. 78th Annual Technical Meeting of IIM, International Symposium on Transformational Technologies in Materials and Manufacturing 20-22 November 2024 GKVK Bengaluru India. https://iimatm.in/

14. Tumula Tirumala, Ajay Kumar (2024). Influence of Stainless-Steel Sheet Insert Dimensions on its Distortion during Reverse Cladding to Aluminum-Silicon Alloy Through Die Casting. International Conference on Next Generation Technologies: Design and Manufacturing ICNGT 2024 13-15 November, 2024. https://code.iitm.ac.in/code-programs/icngt-2024/  (Invited Talk)

15. Tumula Tirumala, Ajay Kumar (2024). Reverse Cladding – A Novel Approach to Fabricate Components with Integrated Surface Cladding. Meeting: MS&T24: Materials Science & Technology during 6-9 October 2024 Pittsburgh, Pennsylvania, USA. https://www.matscitech.org/MST24/MST24/Default.aspx Symposium: Advanced Coatings for Wear and Corrosion Protection

16. Dipayan Chakraborty, Ajay Kumar (2024). A Study on High-Temperature Deformation Behavior, Mechanism and Microstructure Evolution of Ti-900 Alloy for Gas Turbine Blade Application. MS&T24: Materials Science & Technology during 6-9 October 2024 Pittsburgh, Pennsylvania, USA. https://www.matscitech.org/MST24/MST24/Default.aspx Symposium: Composition–Processing–Microstructure-Property Relationships of Titanium Alloys

17. Dipayan Chakraborty, Ajay Kumar (2024). Ti-900: An Alloy for Gas Turbine Compressor Blades Application. ASIAN CONGRESS ON GAS TURBINES (ACGT) 2024 during 21-23 August 2024 at IIT Kanpur India. https://www.iitk.ac.in/acgt2024/

18. Dipayan Chakraborty, Ajay Kumar (2024). A Study on High-Temperature Deformation Behavior, Mechanism and Microstructure Evolution of Ti-900 Alloy for Gas Turbine Blade Application. The International Conference on Creep and Fracture of Engineering Materials and Structures during 28th July-2nd August 2024 IISc Bangalore India. https://creep2024.iisc.ac.in/

19. Ajay Kumar (2024). Invited Talk at 4th Global Ceramic Leadership Roundtable on 'Ceramics for Frontier Sectors: Emerging Advances and Prospects' (CerAP2024) during March 11-12, 2024 at IIT Roorkee https://www.iitr.ac.in/cerap2024/index.html

20. Ajay Kumar (2023). A novel in-situ polymer derived nano ceramic MMC by friction stir processing. Research to Business (R2B) Meet on Ceramics & Advanced materials - Innovative & Emerging Materials On 22nd September 2023 at Bangalore organized by Southwest India Chapter of The American Ceramic Society and Indian Ceramic Society, Karnataka Chapter (ICSKC)

21. Tumula Tirumala, Ajay Kumar (2023). Reverse Cladding of 304 Stainless Steel to LM25 Aluminium Alloy through Die-Casting. 77th Annual Technical Meeting the Indian Institute of Metals (IIM) 22nd to 24th November 2023; Venue: KIIT, Bhubaneswar

22. Ajay Kumar (2023). Friction Stir Processing of Squeeze Cast A356 With Surface Compacted Graphene Nanoplatelets (GNPs) for the Synthesis of Metal Matrix Composite. 8th International Conference on Nanostructured Materials by Severe Plastic Deformation (NanoSPD8) 2023, 26th February to 3rd March 2023 IISc Bangalore India

23. Bhukya Praveen, Ajay Kumar (2023). Prospects for Using Lightweight Metal Matrix Composites in the Automotive Industry. 71st Indian Foundry Congress & Foundry Exhibition IFEX 2023, 8th-10th February 2023 Noida India

24. Ajay Kumar (2023). Prospects for Using Light Weight Metal Matrix Composites in the Automotive Industry. National Conference on Advanced Materials and Manufacturing Technologies (AMMT 2023) February 23-24, 2023. CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram - 695019

25. Ajay Kumar (2022). Sand casting of surface alloyed butterfly valve with improved hardness, adhesion, and corrosion resistance by incorporating metal powders in-mold coatings. ASM International Conference & Exhibition on Materials, Engineering, Technology and Advances in Heat Treatment 2022, 2-4 November 2022 Mumbai India.

26. Ajay Kumar (2022). Sand casting of surface alloyed butterfly valve with improved hardness, adhesion, and corrosion resistance by incorporating metal powders in-mold coatings. 11th International Conference on Industrial Tribology 2022, 12-14 December 2022 New Delhi, India.

27. Ajay Kumar (2022). Sand casting of surface alloyed butterfly valve with improved hardness, adhesion, and corrosion resistance by incorporating metal powders in-mold coatings. 76th Annual Technical Meeting of the Indian Institute of Metals, IIM-ATM 13-16 November 2022 Hyderabad India

28. Ajay Kumar (2022). The Quest for High-Strength and High-Toughness Composites and Materials for Water, Automobile, Defense and Aerospace Applications. Industry Academia Conclave (IAC) Virtual, 7th Jan 2022, IIT Tirupati India.

29. Ajay Kumar (2022). Sand casting of surface alloyed butterfly valve with improved hardness, adhesion, and corrosion resistance by incorporating metal powders in-mold coatings. Advances in Materials and Processing: Challenges & Opportunities 2022 IIT Roorkee 17 –19 October 2022.

30. Ajay Kumar (2022). Structural Health Monitoring and Additive Manufacturing of Metal Matrix Composites, "3rd Global Manufacturing 4.0 Hybrid Conference" - New Delhi (India), 11th March 2022.

31. Ajay Kumar (2021). Advanced Surface Alloying of Mild Steel to stainless Steel Compositions During Manufacture for Improving the Corrosion and Wear Resistance of Water Industry Components. 4th Iron Symposium, 24th November 2021

32. Ajay Kumar (2021). The Quest for High-Strength, and High-Ductility Composite Materials, NMD ATM 2021 75th Annual Technical Meeting of the Indian Institute of Metals, 13-13 November 2021 (Virtual)

33. Ajay Kumar (2021). Effect of Intermetallic Content on Shear Deformation of Thin Sn-3.0Ag-0.5Cu Solder Micro-Joints Between Copper Substrates, International Virtual Conference on Frontiers in Materials for Technological Applications FIMTA-2021Organized by CSIR - Institute of Minerals & Materials Technology Bhubaneswar August 04 – 06, 2021

34. Kaustubh Rane, Michael Beining, Ajay Kumar, Amir Kordijazi, Pradeep Rohatgi (2021), Sand casting of surface-alloyed Butterfly Valve with improved hardness and corrosion resistance by incorporating metal powders in-mold coatings, AFS Metal Casting Congress AFS Transactions 2021.

35. Ajay Kumar (2020). Next Generation Metal Matrix Nano Composites for Electric Vehicles in India. India International Science Festival, 22-24 December 2020 (Virtual)

36. Ajay Kumar; Madhu H C; Abhishek Pariyar; Laszlo S Toth; Satish Vasu Kailas (2020), The Quest for High-Strength, High-Ductility Materials, THERMEC'2020 - International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS: Processing, Fabrication, Properties, Applications: May 31st - June 5th, 2020, in Vienna, Austria THERMEC'2020.

37. Mani Prabu S. S., Madhu H C, Chandra S. Perugu, Ajay Kumar P, Satish V. Kailas, Palani I A (2020), Friction Stir Welding of NiTi Shape Memory Alloy and Realization of Actuation Behaviour, 16th International Conference on Martensitic Transformation (ICOMAT), Jeju, Korea, July 5-10, 2020.

38. Ajay Kumar P (2020). Satish Kailas, Friction Stir Processing of Polymer Derived Nano Ceramics Metal Matrix Composites, 13th International Symposium on Friction Stir Welding and 3rd International Joint Symposium on Joining and Welding, Kyoto International Conference Centre, Kyoto, Japan on 26 - 28 May 2020.

39. S.S. Mani Prabu, H.C. Madhu, Chandra S. Perugu, K. Akash, Ajay Kumar P., Satish V. Kailas, Manivannan Anbarasu, I.A. Palani (2020). Microstructure, mechanical and shape memory behaviour of friction stir welded shape memory alloy, 5th International Congress 6th – 8th February 2020 Weld India Mumbai.  

40. Vishnu Namboodiri V., Anirudhan Pottirayil, Ajay Kumar P., Satish V. Kailas (2019). A case study showing particulate addition may not be effective for a functional performance like wear resistance, National Conference on Nanomaterials for Energy, Environment and Health care (NEEHCON'19) Dec-27 and 28, 2019 School of Materials Science and Engineering, NIT Calicut.

41. Ajay Kumar, Pradeep K. Rohatgi (2019). Friction stir processing of squeeze cast A356 with surface compacted graphene nanoplatelets (GNPs) for the synthesis of metal matrix composites, NMD 14-15 November 2019 Thiruvananthapuram Kerala India.

42. Pradeep Rohatgi, Ajay Kumar, T.P.D. Rajan, B.C. Pai (2019). Cast metal matrix composites over last 50 years and future opportunities in India, NMD 14-15 November 2019 Thiruvananthapuram Kerala India.

43. Ajay Kumar, Nikhil Gupta (2019), Metal matrix syntactic foams for military submarine applications, ADMAT 2019 MatDef 2019: International Conference on Advanced Materials and Processes for Defence Applications Hyderabad, INDIA

44. S.S. Mani Prabu, H.C. Madhu, Chandra S. Perugu, K. Akash, Ajay Kumar, Satish V. Kailas, Manivannan Anbarasu, I.A. Palani (2019). Realization of Friction Stir Welding of NiTi Shape Memory Alloy towards Functional Applications, at Shape Memory and Superelastic Technology Conference and Exposition (SMST), (May 13-17, 2019) at The Bodenseeforum in Konstanz, Germany.

45. Ajay Kumar P., Gajendra Dixit, Aruna Patel, Satyabrata Das (2018), Rolling behaviour of aluminum alloy 2014-10wt% SiCp composites, MS&T 2018 October 14-18, 2018, Columbus, Ohio USA.DOI 10.7449/2018/MST_2018_1296_1303                                                       https://www.internetbookstorepro.com/product/10-7449-2018-mst_2018_1296_1303/

46. Ajay Kumar P., Chandrasekhar P (2018), Synthesis of FeCrVNbMn high entropy alloy by mechanical alloying and study of their microstructure and mechanical properties, In: & Materials Society T. (eds) TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. TMS 2018 pp 669-675. The Minerals, Metals & Materials Series. Springer, Cham.

47. Meysam Khorshid, Ajay Kumar P., Emad Omrani, Pradeep Rohatgi (2018), Synthesis, Characterization, and Properties of Graphene Reinforced Metal-Matrix Nanocomposites using Powder Metallurgy, TMS 2018 March 11-15, 2018, Phoenix, Arizona.

48. S.S. Mani Prabu, H.C. Madhu, Chandra S. Perugu, K. Akash, Ajay Kumar, Satish V. Kailas, Manivannan Anbarasu, I.A. Palani (2017), Friction Stir Welding of Nitinol: Microstructure, Mechanical and Shape Memory Properties, International Conference on Advanced Materials and Processes (ADMAT) 14-16 December 2017 ISRO Thiruvanathapuram, Kerala, India. (ADMAT)

49. Ajay Kumar P., Vishnu Namboodiri V, Anirudhan Pottirayil, Satish V. Kailas (2017), Wear behaviour of friction stir processed NAB alloys in marine environment, WTC2017, 17-22 Sept 2017 Beijing China. (Presented)

50. Ajay Kumar P., Chandrasekhar P (2016), Synthesis of AlTiCuCoZnMn high entropy alloy by mechanical alloying and their microstructure, mechanical behaviour, ICAPIE 2016 DTU Delhi, 9-10 Dec 2016. (Published in Proceedings of International Conference on Advanced Production and Industrial Engineering-2016, p57).

51. Ajay Kumar P., Satish Kailas (2016), Tribological Performance of In-Situ PD-MMC Produced by Friction Stir Processing presented at National Tribology Conference held at AMPRI CSIR Bhopal, 21-22 Jan 2016.

52. Ajay Kumar P., Rishi Raj, Satish Kailas (2015), Polymer Derived In-Situ Nano Metal Matrix Composites Obtained by Friction Stir Processing presented at American Society for Composites 30th Annual Technical Conference held at Michigan State University USA, September 28-30, 2015.

53. Ajay Kumar, Satish Kailas, Polymer Derived In-Situ Nano Metal Matrix Composites Obtained by Friction Stir Processing presented at Nanoyantrika-2015 Trivandrum Kerala India.

54. Ajay Kumar, Satish Kailas, Tribological Performance of a Copper Based Composite Produced by Friction Stir Processing presented at National Tribology Conference-2014 at PES University Bangalore India during 15-17 December, 2014.

55. Ajay Kumar, Satish Kailas, In-situ Dispersion of Ceramic Phase in Cu Matrix by High Shear Powder Consolidation Process presented at International Nano tribology Forum Kerala 2014: Friction and Wear at Nanoscale, Cochin India during 6th - 10th January, 2014. 

56. Ajay Kumar P., Nithant Sourya, Satish Kailas (2014), Use of Image Processing to Estimate Area Fraction of Reinforcement Particles in Composite Fabricated via Friction Stir Processing presented at International Conference on Friction Based Processing at IISc Bangalore India during 3-5 September 2014.

57. Ajay Kumar P., Satish Kailas (2014), Fabrication and Property of In-situ Cross-linked Polymer Derived Ceramics Reinforced Cu Matrix Composites by High Shear Powder Consolidation Process presented at ASIATRIB-2014 International Conference held at Agra, India during 17th - 20th February 2014.

58. Ajay Kumar P., Satish Kailas (2014), In-situ Dispersion of Ceramic Phase in Cu Matrix by High Shear Powder Consolidation Process presented at IUMRS-ICA 2013 conference held at IISc, Bangalore during 16th - 20th December 2013.

59. Ajay Kumar, Aruna Patel, S. Das (2011), Rolling behaviour of Al alloy 2014-10wt. % SiCp composite, 22nd AGM, Materials Research Society of India, Feb. 14-16, 2011, Bhopal, India: pp-47.

60. Ajay Kumar, Self-Healing Materials presented at Soft Matter Physics Meeting held in School of Physical Sciences, Jawaharlal Nehru University New Delhi during 4th - 5th March 2010.

61. Ajay Kumar, Participated in the 97th Indian Science Congress held in Kerala University during 3rd - 7th January, 2010.

62. Ajay Kumar, H.S. Chandra (2007), Seasonal Variation of Pollutant Dispersion around Coal Based Thermal Power Plant: a case study presented at International Conference on Environmental Strategies-2020 held in Ujjain Engineering College MP during 26th – 27th Dec 2007.

63. Ajay Kumar, Smart Materials presented at Second International Conference on Recent Advances in Composite Materials, Sponsored by: AFSOR-AOARD (USA) at New Delhi during 20th - 22th February, 2007.

64. Ajay Kumar, Boron: A Better Energy Carrier than Hydrogen presented at National Conference of Mechanical Engineering Students held in Andhra University during 27th – 28th September, 2007.

65. Ajay Kumar, Infrastructure Management for New World Order and Systems presented at National Seminar (sponsored by: AICTE, New Delhi) held in MITS Gwalior during 24th - 25th March, 2006.

66. Ajay Kumar, Bio energy: Potential and Sustainable development presented at National Seminar held in MITS Gwalior on 17th September, 2005.