摘要
针对PTA装置干燥机加热管的破裂失效，对加热管进行了宏观形貌、化学成分、金相组织、扫描电镜等多项理化分析。结果表明，干燥机加热管破裂原因是由氯离子引起的应力腐蚀破坏。
Fracture failure analysis for a heating tube of a drying machine in a PTA unit was performed by using chemical analysis besides macro profile, metallographic structure and scanning electron microscope observation. The results showed that the main reason for the fracture was stress corrosion damage caused by Cl-.
出处
《中国材料科技与设备》
2014年第5期68-70,共3页
Chinese Materials Science Technology & Equipment
