Effects of Salt Bath Nitriding Process on AISI 309 Stainless Steel Santosh Madeva Naik, Upendra Mahatme, M. Iyyappan, J. Ramesh Babu, M. Bala Gopala Krishna Reddy, D.S. Naga Malleswara Rao and Ram Subbiah E3S Web Conf., 391 (2023) 01109 Published online: 05 June 2023 DOI: 10.1051/e3sconf/202339101109