Effect of Bidirectional Electromagnetic Stirring on Rare Earth Distribution in Semi-Solid Aluminum Alloy

被引：0
作者：
Li H. [1 ]
Liu Z. [1 ]
Zhang C. [1 ]
机构：
[1] School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou
来源：
Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | 2022年 / 40卷 / 05期
关键词：
Bidirectional electromagnetic stirring; Concentration field; Radial distribution; Rare earth; Semi-solid A356;
D O I：
10.11785/S1000-4343.20220516
中图分类号：
学科分类号：
摘要：
Bidirectional electromagnetic stirring is to use the periodically changing electromagnetic force to stir the alloy slurry in both directions, so that the alloy slurry has strong mixing convection. In this paper, the electromagnetic field and concentration field simulation models of semi-solid A356-wt%La slurry with different amount of La addition under electromagnetic stirring were established by using Maxwell 2D and fluent software. Combined with the experiment, the radial distribution law of rare earth in A356 aluminum alloy melt under bidirectional electromagnetic stirring with stirring frequency of 30 Hz and current intensity of 4 A for 15 s was studied. The results show that electromagnetic stirring can significantly affect the distribution of La rich phase, which tends to edge distribution along the ingot radius; When the content of La is 0.4%, the average equal product circle diameter and shape factor of the primary phase meeting the requirements of semi-solid rheological forming are obtained, which reach 35.18 μm and 0.70 respectively, and the simulation results of La tending to edge distribution are verified. © 2022, Editorial Office of Journal of the Chinese Society of Rare Earths. All right reserved.
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页码：861 / 869
页数：8
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