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3 晶体塑性模型参数

Table 3 Parameters used in crystal plasticity model

Parameter Value Unit KHP[39] 1.1 MPa·m dgrain 50 (base), 100 (weld) μm ρ 1 × 1012 (base), 6 × 1013 (weld) m-2 γ˙0[24] 1 × 10-3 s-1 n[53] 5 - kmul 0.03 (base), 0.02 (weld) - Rcp 2 × 10-9 nm βp 0.015 (base), 0.01 (weld) – krecov 200 – C11, C12, C44 157, 114, 99 GPa μ[39] 88 - 3 × 10-5T2 - 5.6 × 10-3T GPa