离心铸造Al Fe合金凝固过程中的先析出相与合金液之间具有较大的密度差 ,在离心力场作用下 ,先析出相将沿径向由内向外迁移 ,致使初生相沿铸件径向呈梯度分布。根据离心铸造Al Fe合金凝固过程中固相迁移运动的特点 ,建立了描述这一运动过程的数学模型 ,并提出采用求平均速度的方法对固相迁移速度进行数值求解 ,求出了凝固过程中各个时刻固相迁移运动速度的分布情况 ,揭示了离心铸造Al Fe合金凝固过程中的固相迁移运动规律。 Centrifugal casting Al Fe alloy solidification process between the first precipitation phase and the alloy liquid has a large density difference between the centrifugal force field, the first precipitated phase along the radial from the inside to the outside, resulting in the primary phase along the radial gradient was cast distributed. According to the characteristics of solid-phase migration during the solidification process of centrifugal casting Al Fe alloy, a mathematical model describing the movement process was established. The method of calculating the average velocity was proposed to solve the solid-state migration velocity numerically. The distribution of the velocity of solid phase migration at each moment revealed the law of solid phase migration during the solidification process of centrifugal casting AlFe alloy.