Phase field modeling of dendrite growth |
| |
Authors: | Yutuo ZHANG Chengzhi WANG Dianzhong LI Yiyi LI |
| |
Affiliation: | 1. Shenyang Ligong University,Shenyang 110168,China 2. Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China |
| |
Abstract: | Single dendrite and multi-dendrite growth for A1-2 mol pct Si alloy during isothermal solidification are simulated by phase field method. In the case of single equiaxed dendrite growth, the secondary and the necking phenomenon can be observed. For multi-dendrite growth, there exists the competitive growth among the dendrites dur-ing solidification. As solidification proceeds, growing and coarsening of the primary arms occurs, together with the branching and coarsening of the secondary arms.When the diffusion fields of dendrite tips come into contact with those of the branches growing from the neighboring dendrites, the dendrites stop growing and being to ripen and thicken. |
| |
Keywords: | Phase field modeling Dendrite growth AI-Si alloy Isothermal solidification |
本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录! |
| 点击此处可从《金属学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《金属学报(英文版)》下载全文 |