通过对合金枝晶凝固中有任意固相反扩散条件下微观溶质再分布的模型化，扩展了作者提出的合金凝固传输及宏观偏析连续介质模型本文微观／宏观统一模型提出的归一化固相反扩散集合参数除了包括合金的团相扩散系数外，还包含了生长枝晶尺度及几何形态参数、凝固速率和溶质分配系数等影响因素模型的数值计算结果表明，在相同的凝固条件下不同的合金固相扩散能力可对其铸锭的宏观偏析行为产生明显的影响 Through the modeling of microscopic solute redistribution under any solid phase reverse diffusion in the dendrite solidification, the authors proposed the solidification transfer and macrosegregation continuum model proposed by the author. The normalized solid phase inverse diffusion In addition to the ensemble diffusion coefficient, the ensemble parameters also include the influence of growth dendrite size, geometry parameters, solidification rate and solute distribution coefficient on the model. The numerical results show that under the same solidification conditions, Phase diffusion ability of its ingot macroscopic segregation behavior had a significant impact