电化学充氢对Cr15铁素体不锈钢和304奥氏体不锈钢氢脆敏感性的影响

张慧云, 郑留伟, 孟宪明, 梁伟

Effect of Electrochemical Hydrogen Charging on Hydrogen Embrittlement Sensitivity of Cr15 Ferritic and 304 Austenitic Stainless Steels

ZHANG Huiyun, ZHENG Liuwei, MENG Xianming, LIANG Wei

表2 充氢前后Cr15不锈钢钢拉伸实验结果

Table 2 Tensile test results of Cr15 stainless steel before and after hydrogen charging

Sample Rel / MPa Rm / MPa A / % IHE (δ) / % A H-free 320 470 32 --- B 10 mA/cm2, 24 h 355 490 16 50.0 C 10 mA/cm2, 48h 375 500 12 62.5 D 20 mA/cm2, 24 h 350 495 14 56.2