Effect of cooling rate on eutectic constituent and solid solubility of Al-6Cu alloy

被引：0
作者：
Wang, Xiangjie [1 ,2 ,3 ]
Yang, Lingfei [1 ,2 ]
Tan, Hongjuan [1 ,2 ]
Yu, Fang [1 ,2 ]
Cui, Jianzhong [1 ,2 ]
机构：
[1] Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang, Liaoning, Peoples R China
[2] Northeastern Univ, Adv Mfg Technol & Engn Res Ctr, Shenyang, Liaoning, Peoples R China
[3] Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang, Peoples R China
来源：
INTERNATIONAL JOURNAL OF CAST METALS RESEARCH | 2022年 / 35卷 / 5-6期
基金：
中国国家自然科学基金;
关键词：
Al-6Cu alloy; wedge-shaped copper mode casting; eutectic constituent; cooling rate; solid solubility; MICROSEGREGATION; MICROSTRUCTURE; SOLIDIFICATION;
D O I：
10.1080/13640461.2022.2146918
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The ingots of Al-6Cu alloy were prepared by the wedge-shaped copper mode casting with the cooling rates of 2 K/s, 10 K/s, 25 K/s and 100 K/s to explore the effect of cooling rate on the area fraction of eutectic constituent, alpha-Al lattice parameter and relative solid solubility. The experimental results revealed that when the cooling rate rose from 2 K/s to 10 K/s, the area fraction of the eutectic constituent and the lattice parameter of alpha-Al decelerated, but the relative solid solubility of alpha-Al increased. When the cooling rate continued to reach 100 K/s, the area fraction of the eutectic constituent and the alpha-Al lattice parameter elevated, lowering the alpha-Al relative solid solubility. According to the model of non-diffusion of solid phase and incomplete mixed solidification of a liquid phase, as for Al-6Cu alloy, relative solid solubility initially increases and then decreases with a boost in cooling rate. The model results are consistent with the experimental results.
引用
收藏
页码：131 / 138
页数：8
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