Effects of Ce on Microstructure and Mechanical Properties of AS31 Magnesium Alloy

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Effects of Ce on Microstructure and Mechanical Properties of AS31 Magnesium Alloy
Vol. 37, Issue 5, Pages: 558-561(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.05.027

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[1]廖露亮,尧军平,张磊,刘辉,孙众.稀土Ce对AS31合金组织和力学性能的影响[J].特种铸造及有色合金,2017,37(05):558-561.

Liao Luliang, Yao Junping, Zhang Lei, et al. Effects of Ce on Microstructure and Mechanical Properties of AS31 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 37(5):558-561(2017)
[1]廖露亮,尧军平,张磊,刘辉,孙众.稀土Ce对AS31合金组织和力学性能的影响[J].特种铸造及有色合金,2017,37(05):558-561. DOI： 10.15980/j.tzzz.2017.05.027.

Liao Luliang, Yao Junping, Zhang Lei, et al. Effects of Ce on Microstructure and Mechanical Properties of AS31 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 37(5):558-561(2017) DOI： 10.15980/j.tzzz.2017.05.027.

研究了稀土Ce对AS31合金组织和力学性能的影响。结果表明

稀土Ce的加入改善了AS31合金中共晶Mg

Si相的形态、尺寸和分布。随着稀土Ce加入量的增加

共晶Mg

Si相的尺寸呈现先减小后增大的趋势。当Ce加入量为0.9%时

合金中共晶Mg

Si相形貌由粗大汉字状转变为蠕虫状和颗粒状

其尺寸也减小到30μm左右

此时变质效果最佳。同时随着稀土Ce的增加

合金的抗拉强度和伸长率呈现先升高后下降的趋势

这与合金中共晶Mg

Si相尺寸的变化一致。

Influence of the different Ce content on microstructure and mechanical properties of the AS31 alloy were investigated.The results show that the size

morphology and distribution of eutectic Mg

Si in the AS31 alloy are improved with Ce addition.With Ce addition

size of eutectic Mg

Si phase is decreased firstly and then increased.When Ce addition is 0.9%

morphology of Mg

Si phase in the alloy is transformed from coarse Chinese script structure into vermicular or particle ones with size of about 30μm

exhibiting the satisfied modification effect.In addition

with increasing in Ce addition

tensile strength and elongation of the alloy are increased firstly and then decreased.

AS31合金共晶Mg2Si稀土Ce力学性能

AS31 AlloyEutectic Mg2SiCeMechanical Properties

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