堆焊层中凝固组织形态以及树枝晶生长方向取决于熔池凝固过程中的传热过程。
The morphology of the solidification structure and the growth direction of the dendrite depended on the heat transfer during the solidification process of the molten pool.
采用捕获液态界面改进的相场方法，系统地研究了结构起伏、能量起伏对过冷纯金属熔体中树枝晶生长的影响规律。
The affecting law of structure fluctuation and energy fluctuation on dendrite growth in pure undercooled melt was studied by simulation of a phase-field method.
温度相对均匀使得游离的晶粒得以保存下来，抑制了晶粒在某个方向上的优先生长，从而抑制了树枝晶的形成。
The dissociative grains were saved and the priority growth at one direction was restrained because of the relative uniform temperature field, consequently the nondendritic structure was formed.
温度相对均匀使得游离的晶粒得以保存下来，抑制了晶粒在某个方向上的优先生长，从而抑制了树枝晶的形成。
The dissociative grains were saved and the priority growth at one direction was restrained because of the relative uniform temperature field, consequently the nondendritic structure was formed.
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