武汉工程大学学报2012，Vol.34Issue(2)：71-73,3.DOI:10.3969/j.issn.1674-2869.2012.2.017
天然气闸阀法兰螺钉断裂失效分析
Fracture failure analysis of gas valve flange bolts
何家胜 1陈文龙 1王彦馨 2徐绮宏 2邵小兰 2刘杰1
作者信息
- 1. 武汉工程大学机电工程学院,湖北武汉430074
- 2. 武汉市天然气有限公司,湖北武汉430022
- 折叠
摘要
Abstract
The fracture reason of gas valve flange bolts was studied by metallographic analysis, chemical composition analysis, macro and micro fractography analysis and energy spectrum analysis. The result shows that the fractures of bolts are probably caused by hydrogen embrittlement and impurity segregation.关键词
螺钉/失效分析/氢脆/杂质偏析Key words
bolt / failure analysis / hydrogen embrittlement / impurity segregation分类
机械制造引用本文复制引用
何家胜,陈文龙,王彦馨,徐绮宏,邵小兰,刘杰..天然气闸阀法兰螺钉断裂失效分析[J].武汉工程大学学报,2012,34(2):71-73,3.
