Modeling Grain Boundaries using a Phase Field Technique
Modeling Grain Boundaries using a Phase Field Technique
复制标题
使用相场技术模拟晶界
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
W. Carter
中科院分区：
文献类型：
--
作者：
R. Kobayashi;J. Warren;W. Carter
提出了颗粒碰撞和粗化的二维标架不变相场模型。得到了稳定晶界的一维解析解，并计算了平衡能。我们能够计算自由颗粒在两个固定取向的颗粒之间的自转速度。对于模型中函数依赖关系的特定选择，晶界能采用与Read和Shockley的微观(位错)模型相同的解析形式。
We propose a two dimensional frame-invariant phase field model of grain impingement and coarsening. One dimensional analytical solutions for a stable grain boundary in a bicrystal are obtained, and equilibrium energies are computed. We are able to calculate the rotation rate for a free grain between two grains of fixed orientation. For a particular choice of functional dependencies in the model the grain boundary energy takes the same analytic form as the microscopic (dislocation) model of Read and Shockley.