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用丁二腈－丙酮合金实验研究试样变形开始时间、初始厚度及变形量对枝晶变形及溶质再分布的影响．结果表明，枝晶变形满足幂次大于１的能量函数关系：枝晶变形能力主要与变形时糊状区固相分数有关：从糊状区挤出的液相相对浓度与固相分数、变形比率成线性关系 实验结果对建立糊状区变形与宏观偏析数学模型及优化连铸液芯压下工艺有意义
The effect of sample deformation start time, initial thickness and amount of deformation on dendrite deformation and solute redistribution was studied by using succinonitrile - acetone alloy. The results show that the deformation of dendrites satisfies the energy function whose power is greater than 1. The dendritic deformability is mainly related to the solid fraction of the pasty zone during deformation: the relative concentration of the liquid phase extruded from the pasty zone, the solid fraction, the deformation ratio The linear relationship between the experimental results for the establishment of the mushy zone deformation and macro-segregation mathematical model and optimization of continuous casting liquid core pressure reduction process is meaningful