Hot Ductility of Fe-18Cr-12Mn-0.55N High Nitrogen Austenitic Stainless Steel

摘要：

The hot ductility of Fe-18Cr-12Mn-0.55N high nitrogen austenitic stainless steel was investigated in Gleeble-2000 thermomechanical simulator. The experimental results show that the hot ductility curve of test steel is comprised of high-temperature brittlement region at the test temperatures higher than 1150℃, high-temperature ductility region at the test temperatures from 850℃ to 1150℃ and middle-temperature half brittlement region at the test temperatures lower than 850℃. High-temperature brittlement and middle-temperature half brittlement are caused by the appearances of δ ferrite and the precipitation of Cr2N phase at austenitic grain boundaries, respectively, and the excellent hot ductility at test temperatures between the two brittlement temperature regions results from the stable single phase austenitic microstructure.

关键词： high nitrogen austenitic stainless steel hot ductility

作者: Feng SHI Lijun WANG Wenfang CUI Zhenbo LI Mingzhou XU Chunming LIU

作者单位: Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang, 110004, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）