Interaction of migrating $\left\{10\overline{1}2\right\}$ twin boundary with obstacles was analyzed by atomistic and finite elements computer simulations of magnesium. Two types of obstacles were considered: one is a non-shearable obstacle and another one is the void inside bulk material. It is shown that both types of obstacles inhibit twin growth and increased stress is necessary to engulf the obstacle in both cases. However, the increase of critical resolved shear stress is higher for the passage of the twin boundary through raw of voids than for interaction with non-shearable obstacles.

中文翻译：

---

镁中孪晶边界迁移与障碍物的相互作用

迁移的相互作用 $\left\{10\overline{\mathrm{1个}}2\right\}$通过镁的原子和有限元计算机模拟分析了具有障碍物的孪生边界。考虑了两种类型的障碍：一种是不可剪切的障碍，另一种是散装材料内部的空隙。结果表明，两种类型的障碍物均会抑制双胞胎的生长，在两种情况下都必须增加压力才能吞噬障碍物。但是，通过孪生边界穿过未加工的空隙，与与不可剪切的障碍物相互作用相比，临界解析剪切应力的增加更高。