摘要
对萨曼杰佩气田失效法兰进行了失效分析,宏观及微观分析表明,法兰焊接热影响区处理质量不高是导致该法兰发生疲劳失效的直接原因;另外,表面冲蚀损伤加剧了电化学腐蚀,对法兰产生腐蚀疲劳断裂也有一定影响。
The failure analysis of the broken down flange used in Samandepe gas field shows that the direct reason for the flange corrosion fatigue was unqualified treating in heat affected zone.In addition,abrasive erosion on the surface of flange worsens electrochemical corrosion,which also causes a certain impact on the fatigue fracture of flange.
出处
《石油与天然气化工》
CAS
CSCD
2011年第B12期54-56,9,共3页
Chemical engineering of oil & gas
关键词
气田用材
法兰失效分析
腐蚀疲劳
腐蚀防护
气田开发
material used in gas field
flange failure analysis
corrosion fatigue
corrosion and protection
gas field development
