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

表2 He泡相场模拟中所用的热力学参数[12,32~34]

Table 2 Thermodynamic parameters used in phase field simulation[12,32-34]

Parameter Value Unit Va[32] 7.06 cm3·mol-1 Evf[12] 3.2 × 10-19 J Egf[12] 6.4 × 10-19 J Ω[32] 1.17 × 10-29 m3 bv[33] 0.039 nm3·atom-1 a[33] 0.0034 J·m3·mol-2 γs[34] 1.82 J·m-2