摘要
用光学显微镜、扫描电镜和X射线衍射仪分析了Fe-Cr-Co马氏体耐热钢在850～1200 ℃加热后的组织,用Gleeble1500热模拟试验机对该钢在此温度范围内的压缩行为进行了研究.结果表明,压缩应力-应变曲线在1000 ℃以下或1050 ℃以上表现出两种不同的规律.这是由于该耐热钢在1000 ℃以下和1050 ℃以上的相组成不同造成的.
Microstructure of a Fe-Cr-Co martensite heat-resistant steel heated in 850～1200 ℃ was studied by means of OM,SEM and XRD. Compression tests were conducted by Gleeble1500 thermal mechanical simulator. The results show that the strain-stress curves bellow 1000 ℃ or above 1050℃ are different. The diversity of microstructure of the steel makes the different mechanical properties.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2007年第9期1-4,共4页
Heat Treatment of Metals
关键词
马氏体耐热钢
组织
压缩
力学性能
martensite heat-resistant steel
microstructure
compression
mechanical properties
