原位小冲头压缩速率对X65管线钢氢脆敏感性的影响

吴晓祺, 万红江, 明洪亮, 王俭秋, 柯伟, 韩恩厚

Effect of Compression Rate on Hydrogen Embrittlement Sensitivity of X65 Pipeline Steel Based on in-situ Small Punch Test

WU Xiaoqi, WAN Hongjiang, MING Hongliang, WANG Jianqiu, KE Wei, HAN En-Hou

表3 在不同气体环境中不同压缩速率的实验结果汇总

Table 3 Summary table of experimental results under different gas environments and compression rates

Compression rate / mm·min-1 Gas environment p / MPa Fm/ N σm/ mm Esp/ J 1.0 N2 4 1723.62 2.50 2.45 0.004 1530.76 2.47 2.26 1.0 H2 4 1572.68 2.10 1.76 0.1 1477.60 2.00 1.62 0.01 1294.53 1.92 1.36 0.004 959.31 1.92 1.11