数值方法中采用变网格技术跟踪移动界面，通过迭代求解溶质扩散方程和溶质守恒方程计算显微偏析参数。
The deforming grids technology was applied for tracking the moving interfaces, and the iterative method was applied for resolving diffusion equation and solute balance equation.
该方法避免了拉格朗日格式因网格畸变产生的数值困难，也克服了欧拉格式材料界面跟踪问题以及因非线性对流扩散项而引起的数值困难。
The MPM eliminates difficulty with mesh distortion as in the Lagrangian method, and with interface tracking and nonlinear convection term as in Eulerian scheme.
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