2.25Cr1Mo钢及其焊接接头在高温水蒸气中的应力腐蚀开裂敏感性研究

刘宇桐, 陈震宇, 朱忠亮, 冯瑞, 包汉生, 张乃强

SCC Susceptibility of 2.25Cr1Mo Steel and Its Weld Joints in High Temperature Steam

LIU Yutong, CHEN Zhenyu, ZHU Zhongliang, FENG Rui, BAO Hansheng, ZHANG Naiqiang

表2 SSRT实验参数及力学性能

Table 2 Summary of SSRT test parameters and mechanical properties at 500 ℃/0.1 MPa

Specimen Environment Tensile strength / MPa Elonga-tion / % Fracture time / h Reduction in area / % Test steel-1 Air 421.20 27.74 77.19 93.41 Test steel-2 Steam 417.40 33.41 95.65 92.16 Z124-1 Air 305.19 23.64 68.09 91.49 Z124-2 Steam 286.66 32.24 89.56 91.15 Z125-1 Air 295.01 25.36 72.92 90.19 Z125-2 Steam 291.52 29.01 80.69 88.95