摘要
通过化学成分和金相分析、宏观和微观断口形貌观察、力学性能测试及相关的理论计算对断裂的N80(1)石油套管进行失效分析,结果表明:N80(1)石油套管断裂是由于套管材质的组织韧性较差、化学成分分布不均和冲击韧性过低等因素造成的。
According to visual examination, chemical analysis, metallographic examination, mechanical inspection, scanning electron microscope examination and facture mechanics analysis of the failed N80（1） oil casing, the main reason for the failure of pipe is the combination of bad metallic phase, non-homogeneous chemical constitution and poor impact ductility.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2008年第3期58-62,共5页
Journal of Iron and Steel Research
关键词
石油套管
断裂
失效分析
oil casing
fracture
failure analysis
