Simulation of grain growth during solidification of twin-roll continuously cast pure aluminum with a modified CA model

被引：0
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作者：
Chen, Shoudong [1 ]
Chen, Jingchao [1 ]
Yu, Jie [1 ]
机构：
[1] Key Laboratory of Advance Material of Rare Precious and Nonferrous Metals, Education Ministry of China, Kunming University of Science and Technology, Kunming 650093, China
来源：
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2013年 / 42卷 / 12期
关键词：
A new mathematic model for the nucleation and the dendrite growth of twin-roll-continuously cast pure aluminum thin strip during solidification process was developed based on cellular automaton(CA)-finite element(FE) method and the classical transfer equations during dendrite growth. The model coupled the temperature field calculation and microstructure simulation. The solute diffusion; the curvature undercooling and the latent heat releasing were also considered in the model; all of which have significant influence on the dendrite evolution. So the dendrite growth morphology can be modeled. The applications of the model in equiaxed dendrite growth; multiple equiaxed dendrite growth; columnar grain growth; and columnar dendrite transformation to equiaxed dendrite in twin-roll-continuously cast aluminum thin strip solidification were presented. The microstructure simulation results were compared with the experimental results and they were in good agreement in dendrite morphology. Copyright © 2013; Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved;
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页码：2462 / 2466
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