摘要
通过对真空泵叶片进行宏观形貌分析、扫描电镜分析和金相分析,同时进行了材料化学成分和拉伸力学性能测试,综合讨论得出真空泵叶片断裂原因:由于材料的铸造缺陷导致真空泵叶片疲劳断裂。
The macro and micro appearance of the fractured blade and microstructure were analyzed by failure analysis method such as SEM,metallogrophic,etc.The chemical composition and tensile property of the blade were tested .The cause of the frac-ture failure was found out through synthetical discussion：It’ s fatigue cracking because of casting defects .
出处
《流体机械》
CSCD
北大核心
2014年第7期55-57,73,共4页
Fluid Machinery
关键词
失效分析
真空泵
叶片
铸造疏松
疲劳开裂
failure analysis
vacuum pump
blade
casting porosity
fatigue fracture
