The results shows that the main reason of stainless steel pipe cracking is that intercrystalline corrosion result in creeprupture.
结果表明，不锈钢管”鼓包”状开裂的主要原因是晶间腐蚀导致的蠕变断裂。
2
The P92 steel is a steel sort being used for main steam pipelines of ultra-supercritical units at present, its creeprupture life has widely drawn close attention.
P 92钢是目前超超临界机组主蒸汽管道的应用钢种，其蠕变断裂寿命被广泛关注。
3
The carburizing damage of HP type ethane cracking tubes after 40000hours of service is analysed using metallographic methods, and the tensile and creeprupture tests are conducted.