Low Temperature Tensile Properties of High Temperature Gas-nitrided Duplez Stainless Steel

摘要：

This investigation was focused on the low temperature tensile properties, phase change, changes in nitrogen content and corrosion resistance in the 22Cr-5Ni-3Mo duplex stainless steel during the heat treatment process of high temperature gas nitriding and solution annealing (HTGN-SA). From the HTGN-SA treatment, the duplex (ferrite + austenite) phase changed into austenite single phase. The nitrogen content of austenite single-phase steel showed a value of ～0.54％. For the HTGN-SA treated austenitic steel, tensile strength increased with lowering test temperature, on the other hand elongation showed the maximum value of 28.2％ at -100℃. The strain-induced martensitic transformation gave rise to lead the maximum elongation. After HTGN-SA treatment, corrosion resistance of the austenite single-phase steel increased remarkably compared with HTGN- treated steel.

关键词： HTGN treatment duplez stainless steel low temperature tensile test strain-induced martensite

作者: Han-Yong On Jung-Hyun Kong Mi-Jung Kim Dae-Kyoung Yoo Chang-Yong Kang Jang-Hyun Sung

作者单位: Department of Materials science and Engineering,Dong-A University,840 Hadan-dong,Saha-gu,Busan,604-7 Steel Making Department,Hyundai Steel Company,Pohang,790-707,Korea Division of Materials science and Engineering, Pukyoung National University,Busan,606-739,Korea Center for Advanced Net Shape Manufacturing and Clean Process,Dong-A University,840 Hadan-dong,Saha-

会议类型: 国际会议

会议名称: The Fourth Asian Conference on Heat Treatment and Surface Engineering(第四届亚洲热处理及表面工程大会)

会议地点: 北京

会议语种:英文

页码: 346-349

在线出版日期: 2009-10-27（万方平台首次上网日期，不代表论文的发表时间）