NUMERICAL SIMULATION OF THE CASTING PROCESS OF AN AZ91D MAGNESIUM ALLOY UNDER A ROTATING-PULSED COMBINED ELECTROMAGNETIC FIELD

被引：0

作者：

Liang, Z. ^{[1
]}

Bai, Q. -w. ^{[1
,2
,3
]}

Tian, Y. -c. ^{[4
]}

Liu, Y. ^{[1
]}

Zhang, K. -h. ^{[1
]}

Lai, H. -m. ^{[1
]}

机构：

[1] Inner Mongolia Univ Sci & Technol, Sch Rare Earth Ind, Baotou, Peoples R China

[2] Inner Mongolia Univ Sci & Technol, Key Lab Green Extract & Efficient Utilizat Light R, Minist Educ, Baotou, Peoples R China

[3] Inner Mongolia Autonomous Reg Carbon Neutral Colla, Beijing 014010, Inner Mongolia, Peoples R China

[4] Inner Mongolia Met Mat Res Inst, Baotou 014030, Peoples R China

来源：

JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY | 2024年 / 60卷 / 02期

关键词：

Pulsed electromagnetic field; Rotating electromagnetic field; Combined electromagnetic field; Magnesium alloy; Numerical simulation; MECHANICAL-PROPERTIES; ULTRASONIC TREATMENT; GRAIN-REFINEMENT; AZ80; MAGNESIUM; FLOW; MICROSTRUCTURE; SOLIDIFICATION; SEGREGATION; MOLD;

D O I：

10.2298/JMMB231220016L

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Using an AZ91D magnesium alloy as the research object, a three-dimensional (3D) numerical model was created and simulated using simulation analysis software. The effects of a rotating electromagnetic field (REMF), a pulsed electromagnetic field (PEMF) and a rotating pulsed electromagnetic field (R-PEMF) on the magnetic field and the flow field of a metal melt were investigated. The simulation results show that during the REMF treatment a rotational force is generated on the cross-section of the melt, and the PEMF exerts a magnetic pressure on the cross-section of the melt. Under the combined effect of these two forces, the Lorentz force increases parallel to the melt axis, and a secondary flow directed towards the core of the melt is generated, which contributes to the homogenization of the melt. By analyzing the solidification structure and elemental distribution of the metal, R-PEMF was shown to effectively improve the solidification structure and macrosegregation of Al in AZ91D magnesium alloy.

引用

页码：191 / 204

页数：14

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