氢扩散模型对临氢结构裂尖氢浓度计算影响

诸滔, 孙浩翔, 周亚洪, 赵宇航, 王艳飞

Effect of Hydrogen Diffusion Model on Hydrogen Concentration Calculation Around a Crack Tip in Hydrogen-exposed Structures

ZHU Tao, SUN Haoxiang, ZHOU Yahong, ZHAO Yuhang, WANG Yanfei

图3 低强度钢裂尖附近静水应力、塑性变形和氢浓度随加载时间的变化

Fig.3 Hydrostatic stress, plastic strain and hydrogen concentration near crack tip varying with loading time of low strength steel. (a) hydrostatic stress and plastic strain; (b) normalized hydrogen concentration in trap sites and occupancy in trapping sites of slow diffusion case; (c) and (e) normalized NILS hydrogen concentration corresponding to fast and slow diffusion without hydrogen trapping, respectively; (d) and (f) normalized NILS concentration corresponding to fast and slow diffusion with hydrogen trapping, respectively