35CrMo钢缸盖螺栓断裂失效分析  

Failure Analysis of 35CrMo Cylinder Cover Bolt

作　　者：安会芬[1] 

机构地区：[1]河北机电职业技术学院材料工程系,河北邢台054048

出　　处：《热加工工艺》2012年第8期223-224,226,共3页Hot Working Technology

摘　　要：采用宏、微观等观察手段对断裂的发动机缸盖螺栓进行分析。结果表明:缸盖螺栓断裂是由于氢脆延迟断裂而造成的,并提出了预防措施。The cracking cylinder cover bolt was analyzed by the observation of macro-fractography and metallographic examination. The results show that the cracking reason is hydrogen embrittlement fracture, embrittlement and the preventive measures were put forward.

关 键 词：缸盖螺栓 氢脆 延迟 

分 类 号：TG111.91[金属学及工艺—物理冶金]