难熔高熵合金在反应堆结构材料领域的机遇与挑战

李天昕, 卢一平, 曹志强, 王同敏, 李廷举

Opportunity and Challenge of Refractory High-Entropy Alloys in the Field of Reactor Structural Materials

LI Tianxin, LU Yiping, CAO Zhiqiang, WANG Tongmin, LI Tingju

表2 部分合金空位迁移能与间隙迁移能的第一性原理计算结果[90~92]

Table 2 Density functional theory calculated defect migration energy in different alloys[90-92]

Alloy EmV / eV EmI/ eV Ni[92] 1.01 0.11 Ni0.8Fe0.2[90] 0.67-1.30 (0.99) 0.07-0.44 (0.23) NiFe[92] 0.56-1.71 (0.90) 0.01-0.95 (0.30) NiCo[92] 1.04-1.25 (1.16) 0.16-0.38 (0.23) NiCoCr[91] 0.34-1.23 (0.94) 0.01-0.58 (0.24) NiCoFeCr[91] 0.31-1.36 (0.83) 0.00-0.69 (0.31)