Effects of Ce on the Divorced Eutectic β Phase in the AZ31 Magnesium Alloy

Jiang Bailing1; Zhang Jiyuan1; Xia Pengju1

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Effects of Ce on the Divorced Eutectic β Phase in the AZ31 Magnesium Alloy
Issue 2, Pages: 99-102(2008)
Published： 2008 ，
DOI：

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[1]蒋百灵,张继源,夏鹏举.Ce对AZ31镁合金中离异共晶β相的影响[J].特种铸造及有色合金,2008(02):99-102+78.

Jiang Bailing1, Zhang Jiyuan1, Xia Pengju1. Effects of Ce on the Divorced Eutectic β Phase in the AZ31 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys (2):99-102(2008)
[1]蒋百灵,张继源,夏鹏举.Ce对AZ31镁合金中离异共晶β相的影响[J].特种铸造及有色合金,2008(02):99-102+78. DOI：

Jiang Bailing1, Zhang Jiyuan1, Xia Pengju1. Effects of Ce on the Divorced Eutectic β Phase in the AZ31 Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys (2):99-102(2008) DOI：

摘要

研究了凝固过程中的冷却速度和稀土Ce加入量对AZ31合金凝固组织中离异共晶β相的生长方式、形貌、特征和数量的影响。结果表明

Ce的加入改变了合金的组织形貌

当加入量增至0.6%时

离异共晶β相从厚壁近乎连续的网状转变成不连续短棒状或粒状分布;组织中离异共晶β相的总量随冷却速度的减小而减少;物相分析发现有Mg-Al-Zn-Ce化合物生成。

Abstract

The effects of cooling rate and Ce addition on the growth behavior

appearance

characteristics and numbers of the divorced eutectic β phase in microstructure of the AZ31 magnesium alloy have been analyzed.The results reveal that Ce addition can greatly influence the microstructure of the alloy.The divorced eutectic β phase in the AZ31 magnesium alloy is converted from continuous net-like structure into discontinuous short rod or particle with the Ce addition increasing to 0.6%

and its amounts are decreased with the declination of cooling rate.In addition

Mg-Al-Zn-Ce compound can be observed in the alloy.