FeMnCoCrNi高熵合金双晶微柱变形机制的分子动力学模拟

张海峰, 闫海乐, 方烽, 贾楠

Molecular Dynamic Simulations of Deformation Mechanisms for FeMnCoCrNi High-Entropy Alloy Bicrystal Micropillars

ZHANG Haifeng, YAN Haile, FANG Feng, JIA Nan

图4 晶界与拉伸方向垂直时不同取向组合的FeMnCoCrNi双晶在弹塑性转变点处的原子结构和位错线分布

Fig.4 Atomic structures (a-f) and corresponding dislocation line distributions (a1-f1) for the FeMnCoCrNi bicrystals with different orientation combinations at elastic-to-plastic transition point when the grain boundary is perpendicular to the tensile direction (a, a1) [001] + [110], engineering strain ε = 4.4% (b, b1) [001] + [111], ε = 4.6% (c, c1) [001] + [123], ε = 4.2% (d, d1) [111] + [110], ε = 1.9% (e, e1) [123] + [110], ε = 3.9% (f, f1) [111] + [123], ε = 3.0%