尚卫，王洋，陈占善   

    摘要：采用设计校核、理化分析以及宏、微观断口分析等手段对断裂的12.9级发动机缸盖螺栓进行分析。结果表明:缸盖螺栓断裂的主要原因是氢脆延迟断裂而造成的,并提出了改进与预防措施。

    关键词：缸盖螺栓;氢脆;12.9级

    Abstract: through design check analysis,physical and chemical analysis,macrograph and microscopic fracture analysis to 12.9 class cylinder head bolt.The main reason of this fracture was pickle brittleness delayed fracture,precautionary measures were found in this paper

    Keywords: Cylinder Head Bolt;Pickle Brittleness;12.9Class

参考文献:

  [1]胡世炎.机械失效分析手册.四川科学技术出版社.

  [2]安会芬.35CrMo钢缸盖螺栓断裂失效分析.材料热处理技术