摘要
某装置多根法兰连接螺栓发生断裂,经化学成分分析、金相分析、断口的微观形貌、宏观形貌分析、腐蚀产物的能谱分析等一系列研究分析,确定该螺栓含碳量偏高,且处于腐蚀环境,失效为晶间型的应力腐蚀导致的断裂失效,并对如何预防该类连接螺栓再次发生失效提出建议。
In one installation, several flange connecting bolts ruptured. Based on the analysis of chemical components, metallurgy, micro and macro rupture section, and energy of corrosion products, it is concluded that the carbon content in the bolt is some high, and when the bolt is in corrosion environment, the crystal type of stress corrosion results in rupture. Thus, some proposals for preventing this kind of failure were presented.
出处
《化工设备与管道》
CAS
2005年第4期50-52,共3页
Process Equipment & Piping
