中文摘要：

三个维的率依赖者水晶粘性模型被使用在空生长和 coales- cence 上学习水晶取向和谷物边界的影响。3D 计算模型是包括一范围虚空或二范围虚空的一个联合起来的房间。为单个水晶和 bicrystals 的三不同取向的结果被比较。结晶的取向在单个水晶的空生长 directionvoid 形状，和空结合上有显著影响，这被发现。bicrystals 的空生长率取决于结晶的取向和谷物 bounldary 方向。

英文摘要：

A three dimensional rate-dependent crystal plasticity model is applied to study the influence of crystal orientation and grain boundary on the void growth and coalescence. The 3D computational model is a unit cell including one sphere void or two sphere voids. The results of three different orientations for single crystal and bicrystals are compared. It is found that crystallographic orientation has noticeable influences on the void growth directionvoid shape, and void coalescence of single crystal. The void growth rate of bicrystals depends on the crystallographic orientations and grain boundary direction.