Sharan Mudda, Ananda Hegde, Sathyashankara Sharma, B. M. Gurumurthy, Manjunath Shettar, M. C. Gowrishankar. "Effect of various heat treatment methods and optimization of their parameters on mechanical properties of AISI 4140 steel." Scientific Reports, 2025. doi:10.1038/s41598-025-17299-1