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

被引：8

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

页码：48 / 54

页数：7

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