The coarsening of dendrite arm spacing during solidification of Al-Cu-Mn alloy

被引：0
作者：
He, Zhi [1 ]
机构：
[1] Xian Shiyou Univ, Coll Mat Sci & Engn, Xian 710065, Peoples R China
来源：
ADVANCED MATERIALS, PTS 1-4 | 2011年 / 239-242卷
关键词：
secondary dendrite coarsening; Al-Cu-Mn alloy; solute boundary layer; directional solidification; DIRECTIONAL SOLIDIFICATION; DIFFUSION-COEFFICIENTS; MULTICOMPONENT ALLOYS; LIQUID DIFFUSION; MICROSEGREGATION; MG;
D O I：
10.4028/www.scientific.net/AMR.239-242.2029
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A secondary dendrite arm spacing coarsening model for multi-component alloy is proposed, where the back diffusion flux in solid is simplified by introducing the parameter of solute boundary layer, delta(i). The simplified model was applied to the predication of the secondary arm spacing of directional solidified Al-Cu-Mn alloy. The good agreement between the experimental results and the calculated lines shows that this simplified model is satisfactory for the prediction of dendrite arm coarsening during solidification in multi-component alloys.
引用
收藏
页码：2029 / 2033
页数：5
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