考虑成分过冷、曲率过冷、界面能各向异性等因素,将有限体积法与元胞自动机相结合,对枝晶生长过程进行模拟,改进了界面推进和溶质扩散过程的计算。结果发现,过冷度、溶质浓度等因素对于枝晶的形貌和生长速度有着重要影响,而在合金的各种物性参数中,液相溶质扩散系数对于枝晶的生长影响尤为显著。 Considering the factors of overcooling, overcooling of curvature and anisotropy of interface, the finite volume method is combined with cellular automaton to simulate the growth of dendrite and improve the calculation of interfacial propulsion and solute diffusion process. The results show that the factors such as supercooling degree and solute concentration have an important influence on the morphology and growth rate of dendrites. However, the influence of liquid solute diffusion coefficient on the growth of dendrites is particularly significant in various physical parameters of alloys.