High magnetic field induction of the formation of twinned dendrites during directional solidification of Al-4.5wt%Cu alloy

被引：5

作者：

Li, Xi ^{[1
,2
]}

Fautrelle, Yves ^{[2
]}

Gagnoud, Annie ^{[2
]}

Cao, Guanghui ^{[1
]}

Zhang, Yudong ^{[3
]}

Ren, Zhongming ^{[1
]}

Lu, Xionggang ^{[1
]}

Esling, Claude ^{[3
]}

机构：

[1] Shanghai Univ, Dept Mat Sci & Engn, Shanghai 200072, Peoples R China

[2] CNRS, SIMAP EPM Madylam, ENSHMG, F-38402 St Martin Dheres, France

[3] Univ Metz, CNRS UMR 7078, LETAM, F-57045 Metz, France

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2014年 / 94卷 / 03期

基金：

中国国家自然科学基金;

关键词：

solidification; high magnetic field; alpha-Al dendrite; twinned dendrites; GROWTH; CONVECTION;

D O I：

10.1080/09500839.2013.873549

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is reported that the application of a high magnetic field is capable of inducing the formation of twinned dendrites during directional solidification of Al-4.5wt%Cu alloy. Numerical results reveal that a unidirectional thermoelectric magnetic force acts on tilted dendrites during directional solidification under a magnetic field. This force should be responsible for the formation of twinned dendrites. The work may initiate a new method for inducing twinned dendrites in Al-based alloys via an applied high magnetic field during directional solidification.

引用

页码：118 / 126

页数：9

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