M/A组元对高强度管线钢抗H<sub>2</sub>S性能的影响

M/A组元对高强度管线钢抗H₂S性能的影响

史显波, 王威, 严伟, 单以银, 杨柯

Effect of Martensite/Austenite (M/A) Constituent on H₂S Resistance of High Strength Pipeline Steels

SHI Xianbo, WANG Wei, YAN Wei, SHAN Yiyin, YANG Ke

表5 两种实验钢硫化物应力腐蚀开裂实验结果

Table 5 Results of SSC experiments for two tested steels

Steel	Microstructure	Yield strength / MPa	Loading strength	Time / h
A	AF+M/A	620	80%, 496 MPa	＞720
A	AF+M/A	620	90%, 558 MPa	＞720
B	AF+M/A	657	80%, 526 MPa	479
B	AF+M/A	657	90%, 591 MPa	203