Effect of DC Magnetic Field on Solidified Structure and Mechanical Properties of AZ91D Magnesium Alloy

Huang Manqing; Zhou Quan; Liu Feng; Huang Jinjiao

doi:10.15980/j.tzzz.2016.03.026

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Effect of DC Magnetic Field on Solidified Structure and Mechanical Properties of AZ91D Magnesium Alloy
Vol. 36, Issue 3, Pages: 320-323(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.03.026

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[1]黄曼青,周全,刘峰,黄金角.直流磁场对AZ91D镁合金凝固组织和力学性能的影响[J].特种铸造及有色合金,2016,36(03):320-323.

Huang Manqing, Zhou Quan, Liu Feng, et al. Effect of DC Magnetic Field on Solidified Structure and Mechanical Properties of AZ91D Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 36(3):320-323(2016)
[1]黄曼青,周全,刘峰,黄金角.直流磁场对AZ91D镁合金凝固组织和力学性能的影响[J].特种铸造及有色合金,2016,36(03):320-323. DOI： 10.15980/j.tzzz.2016.03.026.

Huang Manqing, Zhou Quan, Liu Feng, et al. Effect of DC Magnetic Field on Solidified Structure and Mechanical Properties of AZ91D Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 36(3):320-323(2016) DOI： 10.15980/j.tzzz.2016.03.026.

摘要

研究了0

.4T的直流磁场对AZ91D镁合金凝固组织和力学性能的影响。结果表明

随着磁感应强度的增加

由于MHD和TEMHD效应

合金的初生相和第二相先细化后粗化

其转折点均为0.84T;随着磁感应强度的增加

由于晶面磁化率的不同

α-Mg基体在（101）晶面的衍射峰强度减弱

在（102）、（100）和（110）晶面显著增强。直流磁场处理后

合金的综合力学性能得到了改善;当磁感应强度为1.40T时

合金的抗拉强度和伸长率较无磁场处理时分别提高了86%和28%。

Abstract

Effects of different DC magnetic field intensity（0

.4T）on solidified structure and mechanical properties of AZ91 D magnesium alloy were investigated.The results show that with the increase of magnetic field intensity

primary phase and second phase in the alloy are refined firstly and then coarsened as a result of MHD and TEMHD effects

and the turning point is 0.84 T.Due to the different susceptibility of different crystal plane

the diffraction intensity of crystal plane（101）ofα-Mg matrix is weakened

and the crystal plane（102）

（100）and（110）are enhanced significantly with the increase of magnetic field intensity.Mechanical properties of the alloy are improved obviously with DC magnetic field treatment.With the magnetic field intensity of 1.4T

tensile strength and elongation of the alloy are increased by 86% and by 28%

respectively

compared with those of the alloy without DC magnetic field treatment.