304不锈钢封头应力腐蚀开裂失效分析  

Failure Analysis of Stress Corrosion Cracking of 304 Stainless Steel Head

作　　者：金光熙[1] 朴美善[2] 

机构地区：[1]吉林化工学院理学院,吉林吉林132022 [2]北华大学图书馆,吉林吉林132013

出　　处：《热加工工艺》2011年第23期226-228,共3页Hot Working Technology

摘　　要：通过化学成分、金相组织、马氏体含量、扫描电镜观察和能谱分析等手段,对某304奥氏体不锈钢容器封头开裂原因进行了分析。结果表明:封头开裂属于形变马氏体和氯离子共同作用引起的应力腐蚀开裂。提出了相应的改进措施。Through the metheds of the chemical composition analysis, metallographic analysis, the content of martensite, SEM and EDAX, the causes of the crack failure on the head of 304-austenitic stainless steel vessel were analyzed. The results show that head crack belongs to the combined action of the deformation-induced martensite and chloride ion which cause the stress corrosion cracking. Relative improvement measures to prevent the occurrence of failure are proposed.

关 键 词：封头 氯离子 形变马氏体 应力腐蚀 

分 类 号：TG142[一般工业技术—材料科学与工程]