摘要
针对某催化装置外取热器管程出口三通焊缝开裂失效的情况,通过化学成分分析、有限元应力分析、扫描电镜分析等手段进行了失效分析。结果表明,三通的开裂性质为应力腐蚀开裂。
In the case of cracking in the tee＇s welds of the external heat exchanger tube of a catalytic unit, failure analysis was performed by means of chemical composition analysis, finite element stress analysis, scanning electron microscope analysis and so on. The results showed that the cracks property of the tee was stress corrosion cracking.
出处
《化工装备技术》
CAS
2017年第3期44-47,共4页
Chemical Equipment Technology
关键词
三通
焊缝
失效分析
有限元
应力腐蚀
换热器
Tee
Weld seam
Failure analysis
Finite element
Stress corrosion
Heat exchanger
