Plasma Carburizing of AISI 316L Austenitic Stainless Steel at Low Temperature

摘要：

Plasma carburizing of AISI 316L austenitic stainless steel was carried out at low temperature to improve the surface hardness without degradation of its corrosion resistance. The microstructure, surface hardness, phase composition and corrosion property of the hardened layer were analyzed. The experimental results show that high-quality hardened layers can be produced at the carburizing temperatures between 673 K and 773 K, which have not only high surface hardness and wear resistance, but also good corrosion resistance. All of the hardened layers display a precipitation-free structure or Sc phase. The chromium carbides began to precipitate in the hardened layer as soon as the carburizing temperature is higher than 823 K. The precipitation of chromium carbides will lead to deterioration in corrosion resistance of the hardened stainless steel.

关键词： Austenitic stainless steel Plasma carburizing Low temperature Surface hardening

作者: Shaomei Zheng Cheng Zhao

作者单位: Surface Engineering Laboratory .Qingdao University of Science and Technology,Qingdao,P,R,China,26603 Surface Engineering Laboratory .Qingdao University of Science and Technology,Qingdao,P,R,China,26603

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 564-568

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）