奥氏体不锈钢的显微组织及氦脆断口观察  

The Observation of Microstructure and Helium Embrittlement Fracture of Austenitic Stainless Steel

作　　者：盛钟琦[1] 肖洪[1] 彭峰[1] 遆忠信[1] 张友发[2] 

机构地区：[1]中国核动力研究设计院 [2]四川大学原子核科学技术研究所

出　　处：《核动力工程》1991年第6期41-46,共6页Nuclear Power Engineering

摘　　要：利用电子显微镜对几种奥氏体不锈钢的形变和时效后的显微组织作了研究,在低应变下加工硬化主要依靠位错密度的增加,高应变下还出现大量形变诱发组织。时效引起碳化物的析出,基体还有再结晶的趋势。此外,还对经α粒子辐照后的氦脆断口作了观察。The microstructure of some austenitic stainless steels, after deformation and ageing, have been investigated by electron microscopy. At low strain level the work-hardening depends mainly on the increase of dislocation density, and at high strain level, a greet many of deformation induced structure played an important role in wokhardening process. During ageing, the carbide particles precipitate and the recrystalliztion take place in matrix. In addition, helium embrittlement fracture after a particles irradiation Was observed.

关 键 词：奥氏体 不锈钢 显微组织 氢脆 

分 类 号：TL627[核科学技术—核技术及应用]