Effects of Heat Treatment and Rare Earth Ce on Properties of AZ91D Magnesium Alloy

Hu Yong; Rao Li; Li Qiuping

doi:10.15980/j.tzzz.2014.12.003

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Effects of Heat Treatment and Rare Earth Ce on Properties of AZ91D Magnesium Alloy
Vol. 34, Issue 12, Pages: 1244-1247(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.12.003

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[1]胡勇,饶丽,黎秋萍.热处理和稀土Ce对AZ91D合金性能的影响[J].特种铸造及有色合金,2014,34(12):1244-1247.

Hu Yong, Rao Li, Li Qiuping. Effects of Heat Treatment and Rare Earth Ce on Properties of AZ91D Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 34(12):1244-1247(2014)
[1]胡勇,饶丽,黎秋萍.热处理和稀土Ce对AZ91D合金性能的影响[J].特种铸造及有色合金,2014,34(12):1244-1247. DOI： 10.15980/j.tzzz.2014.12.003.

Hu Yong, Rao Li, Li Qiuping. Effects of Heat Treatment and Rare Earth Ce on Properties of AZ91D Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 34(12):1244-1247(2014) DOI： 10.15980/j.tzzz.2014.12.003.

摘要

研究了热处理和稀土Ce共同作用对AZ91D镁合金组织和性能的影响。结果表明

AZ91D镁合金中加入稀土Ce后

生成了杆状化合物Al4Ce

且网状分布的β-Mg17Al12相变成弥散化分布。随稀土Ce含量的增加

AZ91D镁合金的力学性能和耐蚀性能提高。经T4和T6热处理

杆状化合物Al4Ce的形貌保持不变。T6处理后

加入了稀土Ce合金的力学性能和耐蚀性能比铸态AZ91D镁合金的力学性能和耐蚀性能显著提高。

Abstract

Effects of heat treatment and rare earth Ce on the microstructures and properties of AZ91 D magnesium alloy were investigated.The results indicate that the rod-like Al4 Ce compounds are generated in AZ91 D magnesium alloy with Ce addition

and net-likeβ-Mg17Al12 is dispersedly distributed into the alloy.The mechanical properties and corrosion resistance of the magnesium alloy are improved with increasing in rare earth Ce.The morphology change of the rod-like compounds Al4 Ce is absent after T4 or T6heat treatment.Compared with those of as cast AZ91 D magnesium alloy

the mechanical properties and corrosion resistance of AZ91 Dcontaining Ce alloy after T6 heat treatment are improved significantly.