Evolution Behavior of γ-Al3.5FeSi in Mg Melt and a Separation Method of Fe from Al-Si-Fe Alloys

被引：7
|
作者：
Gao, Tong [1 ]
Li, Zeng-Qiang [1 ]
Zhang, Yao-Xian [1 ]
Liu, Xiang-Fa [1 ]
机构：
[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Shandong, Peoples R China
来源：
ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2018年 / 31卷 / 01期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Al-Si-Fe; Mg melt; Fe-rich phase evolution; Separation; MICROSTRUCTURE;
D O I：
10.1007/s40195-017-0627-y
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The recycling of high Fe-content Al-Si alloys is a green industry. Eliminating the harmful effect of Fe, achieving the separation of Al and Fe is one of the key problems. Different from traditional methods for iron removal, a novel method using magnesium melt to separate Al and Fe is proposed. By introducing Al-14Si-5Fe alloy into Mg melt, it was found that the gamma-Al3.5FeSi phase evolves to Al3SiFe3.5 and Al5Fe2 through the melting and solidification process. Compared with the primary Al-rich gamma-Al3.5FeSi phase, the formation of Fe-rich Al3SiFe3.5 is quite beneficial for the separation of Al and Fe. Mg-Si-Al and Mg-Si-Fe alloys can be obtained at the top and bottom of the cooled ingot, respectively. The results in this study provide meaningful suggestions for recycling scrap Al-Si-Fe materials.
引用
收藏
页码：48 / 54
页数：7
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