摘要
TP347H奥氏体耐热钢广泛应用于火电机组锅炉受热面管。结合奥氏体耐热钢管服役性能和TP347H钢管爆管失效案例,综述了TP347H钢制受热面管在锅炉服役运行中常见的6种失效机理,包括晶间腐蚀、应力腐蚀开裂、组织老化、氧化腐蚀、原始缺陷和马氏体转变,并介绍了失效特征、分析方法和预防措施。
The austenitic heat-resistant steel TP347 H is widely used in heating tubes of thermal power unit boilers.Combining the service performance of austenitic heat-resistant steel tubes and the failure cases of TP347 H steel tube bursts,the six common failure mechanisms,including intergranular corrosion,stress corrosion cracking,microstructure aging,oxidative corrosion,original defects and martensite transformation,of TP347 H steel heating tubes during boiler operation are reviewed.The failure characteristics,analysis methods and preventive measures are described.
作者
张骏
郑准备
杨占君
孙兴新
李梦阳
张建伟
ZHANG Jun;ZHENG Zhunbei;YANG Zhanjun;SUN Xingxin;LI Mengyang;ZHANG Jianwei(Northwest Power Technology Research Institute,China Datang Group Science and Technology Research Institute Co.,Ltd.,Xi’an 710021,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2021年第2期7-14,共8页
Materials For Mechanical Engineering
关键词
火电机组
奥氏体耐热钢
TP347H钢
失效分析
失效机理
thermal power unit
austenitic heat-resistant steel
TP347H steel
failure analysis
failure mechanism
