Understanding deformation mechanisms, martensitic transformation kinetics, and microstructure evolution in metallic materials under extreme loading and temperature conditions.
Understanding the role of crystal orientation andnphase stability (𝜞SFE, and Gibbs free energy, ΔGγ→ε) on reversible martensitic transformations that significantly enhance low-cycle fatigue resistance.
Design and development of Fe-Mn-Si-based alloys with superior strength-ductility balance, and improved resistance against fatigue and hydrogen embrittlement at cryogenic temperatures.
Advancing real-time thermo-mechanical testing platforms to capture dynamic deformation and transformation behavior using high-energy X-ray and neutron sources.
In-situ TOF neutron based tensile/fatigue studies in cryogenic environments
Exploring gradient nanostructuring and surface coatings for enhanced wear, corrosion, and oxidation resistance in structural alloys.
F. Yoshinaka, T. Sawaguchi, S. Takamori, S. Emura, and Digvijay Singh, “Retarded fatigue crack growth in Fe–15Mn–10Cr–8Ni–4Si via reversible γ ↔ ε transformation”, International Journal of Fatigue, Vol. 194 (2025). DOI: 10.1016/j.ijfatigue.2025.108829
Digvijay Singh, F. Yoshinaka, S. Takamori, and T. Sawaguchi*, “Revealing Extraordinary Plasticity in Single Crystal Fe-15Mn-10Cr-8Ni-4Si Alloy”, Scripta Materialia, Vol. 255, Page 116382 (2024). DOI: 10.1016/j.scriptamat.2024.116382.
Digvijay Singh, V. Kumar, V. Nandal, and S.S. Hosmani*, “Investigating Microstructure Dynamics and Strain Rate Sensitivity in Gradient Nanostructured AISI 304L Stainless Steel: TEM and Nanoindentation Insights”, Materials Today Communication, Page 110386 (2024). DOI: 10.1016/j.mtcomm.2024.110386
Digvijay Singh, F. Yoshinaka, S. Takamori, S. Emura, and T. Sawaguchi*, “Breaking the Strength-Ductility trade-off in Austenitic Stainless Steel at Cryogenic Temperatures: Mechanistic Insights”, Journal of Materials Research and Technology, Vol. 33, Page 600-611 (2024). DOI: 10.1016/j.jmrt.2024.09.074
Vickey Nandal, Amit Prasad, Digvijay Singh, E-Wen Huang, Yao-Jen Chang, An-Chou Yeh, Jayant Jain, Suresh Neelakantan*, “The recrystallization behavior of cryo- and cold-rolled AlCoCrFeNiTi High Entropy Alloy” Vacuum, Vol. 224, Page 113190 (2024). DOI: 10.1016/j.matchar.2023.113521
Digvijay Singh, A. Singh, and T. Sawaguchi*, “Elucidating deformation pathways and interface characteristic of self-accommodated dual γ/ε phase microstructure in Fe-Mn-Si-Al alloy”, Materials Characterization, Vol. 207, Page 113521 (2023). DOI: 10.1016/j.matchar.2023.113521.
Digvijay Singh, W.Tasaki, F. Yoshinaka, S. Takamori, S. Emura, K. Tsuchiya, T. Sawaguchi*, “Unveiling the transformation pathways of hierarchical γ90 – εtwin – α’ triple phase structure formation at ε-ε martensite intersection”, Materials Characterization, Vol. 205, Page 113358 (2023). DOI: 10.1016/j.matchar.2023.113358.
Nilesh K. Kumbhar, Vikesh Kumar, Digvijay Singh, S.S. Hosmani*, “Gradient Microstructure and Properties of Surface Mechanical Attrition Treated AZ91D Alloy: An Effect of Colliding Balls Velocity”, Advanced Engineering Materials, Page 2300549 (2023). DOI: 10.1002/adem.202300549
Digvijay Singh, Felipe Cemin, Mawin J.M. Jimenez, Vinícius Antunes, Fernando Alvarez, Dmytro Orlov, Carlos A. Figueroa, S.S. Hosmani*, “High-Temperature Oxidation Behaviour of nanostructure Surface Layered Austenitic Stainless Steel”, Applied Surface Science, Vol. 581, Pages 152437 (2022). DOI: 10.1016/j.apsusc.2022.152437.
Digvijay Singh*, Dudekula A. Basha, Lars Wadsö, Dmytro Orlov, Yoshitaka Matsushita, Alok Singh, and S.S. Hosmani, “Evolution of Gradient Structured Layer on AZ91D Magnesium Alloy and Its Corrosion Behaviour”, Journal of Alloys and Compounds, Vol. 882, 15 November 2021, Pages 160659-1 to 160659-14 (2021). DOI: 10.1016/j.jallcom.2021.160659.
A. K. Litoria, M. D. Joshi, V. Antunes, Digvijay Singh, C. A. Figueroa, F. Alvarez, and S.S. Hosmani*, “The Response of Boronized 34CrAlMo5-10 (EN41B) Steel to Nanoindentaion, Oxidation, and Wear”, Philosophical Magazine, Vol. 101, No. 7, Pages 777-818 (2021). DOI: 10.1080/14786435.2020.1866221.
Digvijay Singh*, Dudekula A. Basha, Alok Singh, Rupesh S. Devan, and S.S. Hosmani, “Microstructural and Passivation Response of Severely Deformed AISI 304 Steel Surface: The Role of Surface Mechanical Attrition Treatment”, Journal of Materials Engineering and Performance, Vol. 29, No. 10, October 2020, Pages 6898 to 6911 (2020). DOI: 10.1007/s11665-020-05161-6.
Manoj D. Joshi, Vikesh Kumar, Aditya K. Litoria, Digvijay Singh, and S.S. Hosmani*, “Effect of Surface Mechanical Attrition Treatment on Tribological Behavior of AISI 2205 Steel,” Materials Today: Proceedings, Vol. 33, Part 8, Pages 4919-4926 (2020). DOI: 10.1016/j.matpr.2020.02.487.
Digvijay Singh, A.M. Gatey, R.S. Devan, V. Antunes, F. Alvarez, C.A. Figueroa, A.A. Joshi, and S.S. Hosmani*, “Surface Treatment Response of AISI 2205 and AISI 304L Steels: SMAT and Plasma-Nitriding”, Surface Engineering, Vol. 35, No. 3, Pages 205-2015 (2019). DOI: 10.1080/02670844.2018.1516372.
A.K. Litoria, A.A. Joshi, M.D. Joshi, G. Dixit, Digvijay Singh, and S.S. Hosmani*, “Wear Behaviour of Boronized and Duplex-Treated AISI 4140 Steel Against DLC-Coated Boronized AISI 4140 Disc”, Surface Engineering, Vol. 35, No. 4, Pages 370-377 (2019). DOI: 10.1080/02670844.2018.1512198.
