Research Progress and Development Tendency of Nitrogen-alloyed Austenitic Stainless Steels

Research progress on nitrogen-alloyed austenitic stainless steels was expounded through the development of steel grades. In addition, hot topics in the research of nitrogen-alloyed austenitic stainless steels were discussed, including the solubility of nitrogen, brittle-ductile transition, and welding. On this basis, it was proposed that the future development tendency of nitrogen-alloyed austenitic stainless steels lied in the three fields of high-performance steels, resource-saving steels, and biologically friendly steels. The problems encountered during the research of nitrogen-alloyed austenitic stainless steels were discussed.