在铸坯凝固末端轻压下直接作用区域，两相区受到压缩，枝晶间富含溶质的液相被挤出，相对于铸坯向液芯方向流动。轻压下之后，铸坯中心区域由糊状区内被压缩的固相及残留的液相构成，中心区域偏析指数下降。
The simulation results show that mushy region is compressed and interdendritic solute-rich liquid flows toward the liquid core in the soft reduction action zone at the solidification end of the slab.
随凝固的进行，液相中的溶质不断富集，最终在铸坯的中心区域形成宏观偏析。
The macrosegregation is formed in central area of the billet resulted from the continuous enrichment of solute during solidification process.
还发现，在铸锭的中心靠上的区域形成正偏析，在铸锭的外部区域形成负偏析。
The positive segregation in the upper center and the negative segregation in the exterior region of the ingot are found at the same time.
还发现，在铸锭的中心靠上的区域形成正偏析，在铸锭的外部区域形成负偏析。
The positive segregation in the upper center and the negative segregation in the exterior region of the ingot are found at the same time.
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