Influence of Anisotropy Degree on Dendrite Growth in Ni-Cu Binary Alloy Using the Phase Method

The phase-field model which coupled the concentration field and phase field is applied to simulate microstructure evolution during dendritic growth of Ni-Cu binary in 2-D,The influence of anisotropy degree on dendritic crystal growth is investigated in this paper.The simulated result shows that as the degree of anisotropy increases,the growth velocity of dendrite tip is accelerated and characteristic of dendritic structure is more obvious.When the anisotropy parameter is between 0.03 and 0.055,the best simulation result of the dendrite morphology can be obtain.