Effects of an intermittent permanent magnet stirring on the melt flow and grain refinement of Al-4.5Cu alloy

被引：19

作者：

Zou, Jing ^{[1
]}

Zhang, Haitao ^{[1
]}

Wu, Zibin ^{[1
]}

Wang, Jiahui ^{[2
]}

Li, Baomian ^{[1
]}

Cui, Jianzhong ^{[1
]}

Nagaumi, Hiromi ^{[3
]}

Li, Yinglong ^{[4
]}

机构：

[1] Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China

[3] Soochow Univ, High Performance Met Struct Mat Res Inst, Suzhou 215021, Jiangsu, Peoples R China

[4] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2021年 / 14卷

基金：

中国国家自然科学基金;

关键词：

I-PMS; Melt flow; Solidification structure; Al-4; 5Cu alloy; Grain refinement mechanism; AL-SI ALLOYS; SOLIDIFICATION STRUCTURE; DENDRITE FRAGMENTATION; FLUID-FLOW; PART II; CU; MICROSTRUCTURE; ALUMINUM; COLUMNAR; DRIVEN;

D O I：

10.1016/j.jmrt.2021.07.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel technology, termed intermittent permanent magnet stirring (I-PMS), is proposed to improve the quality of aluminum alloy ingots. In this paper, the melt flow and solidification structure of Al-4.5Cu alloy were investigated through I-PMS. The grain refinement mechanism of I-PMS is also discussed. The results indicate that the melt flow patterns and distributions can be greatly affected by I-PMS. When I-PMS is applied during solidification, the melt undergoes a series of complicated periodic three-dimensional flows. Compared without I-PMS, the solidification structure of Al-4.5Cu alloy with I-PMS was remarkably refined, and the optimum solidification structure could be realized utilizing appropriate processing parameters. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：1585 / 1600

页数：16

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