摘要
文章对管线钢DWTT试样上出现的分离断口进行了分析。通过扫描电镜、透射电镜和X射线衍射仪等手段对分离断裂面、微观组织和织构进行了显微分析,发现断口分离现象经常出现在韧脆温度转变区,其形成原因与试样的组织形态和成分偏析密切相关。
DWTT separation fracture has been analyzed for pipe line steel surveyed with SEM, TEM and X-ray diffractometer . It was discovered FATT and was concerned with microstructure and segregation.
出处
《物理测试》
CAS
2007年第4期47-51,共5页
Physics Examination and Testing
关键词
分离断口
落锤撕裂试验
组织偏析
separation fractu re
DWTT
segregation The fracture and microstructure were that separation was often formed near
