316H钢及其焊缝金属辐照He泡演化与力学行为的相场-晶体塑性耦合模拟

316H钢及其焊缝金属辐照He泡演化与力学行为的相场-晶体塑性耦合模拟

王栋, 徐连勇, 赵雷, 韩永典, 宋恺

Phase Field and Crystal Plasticity Simulation of Irradiation-Induced He Bubbles Evolution and Mechanical Behavior in 316H Steel and Weld Metal

WANG Dong, XU Lianyong, ZHAO Lei, HAN Yongdian, SONG Kai

图11 不同空位与He原子比例以及不同扩散条件下的He泡演化及其占比和尺寸变化

Fig.11 He bubble under different ratios of vacancy to He concentration and diffusion conditions ((M_v,g)_base and (M_v,g)_weld are the chemical mobilities of vacancy and He atom in 316H steel and 316H WM, respecyively; $g_{v}^{0}$ and $g_{g}^{0}$ are the production rates of vacancy and He atom during irradiation, respectively)
(a-d) He bubble evolutions under the values of

g_{v}^{0}

g_{g}^{0}

are 6 (a), 9 (b), 12 (c), and 15 (d) with (M_v,g)_weld = 6(M_v,g)_base (e-h) He bubble evolutions under the values of

g_{v}^{0}

g_{g}^{0}

are 6 (e), 9 (f), 12 (g), and 15 (h) with (M_v,g)_weld = (M_v,g)_base (i, j) porosity (i) and diameter (j) under different conditions