Effects of Cu/RE Ratio on the Properties and Microstructure of High Zinc Al-based Alloy

Zhang Shaofei; Wang Zhimin

doi:10.15980/j.tzzz.2013.12.018

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Effects of Cu/RE Ratio on the Properties and Microstructure of High Zinc Al-based Alloy
Vol. 33, Issue 12, Pages: 1158-1161(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.12.018

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[1]张少飞,王智民.Cu、RE质量比对高锌铝合金组织和性能的影响[J].特种铸造及有色合金,2013,33(12):1158-1161.

Zhang Shaofei, Wang Zhimin. Effects of Cu/RE Ratio on the Properties and Microstructure of High Zinc Al-based Alloy. [J]. Special Casting & Nonferrous Alloys 33(12):1158-1161(2013)
[1]张少飞,王智民.Cu、RE质量比对高锌铝合金组织和性能的影响[J].特种铸造及有色合金,2013,33(12):1158-1161. DOI： 10.15980/j.tzzz.2013.12.018.

Zhang Shaofei, Wang Zhimin. Effects of Cu/RE Ratio on the Properties and Microstructure of High Zinc Al-based Alloy. [J]. Special Casting & Nonferrous Alloys 33(12):1158-1161(2013) DOI： 10.15980/j.tzzz.2013.12.018.

摘要

通过研究RE和铜在合金中的共同作用

证实了铜在高锌铝合金中最佳添加量为1%

RE的最佳添加量为0.2%。在高锌铝合金中

ε相中会溶解一部分RE

使得ε相脆性有所减弱。不同Cu、RE质量比会影响高锌铝合金中其他相的形成。Cu、RE质量比达到8∶1时（Cu为1.6%、RE为0.2%）其力学性能最优

抗拉强度为287 MPa

硬度（HB）为103

伸长率为6.3%。

Abstract

Through analyzing the co-action of rare earth and copper in the alloy

it is found that the desirable copper content is 1%

and the rare earth addition is 0.2%in the high zinc aluminum alloy.In the high zinc aluminum alloy

a minor of rare earth can be well dissolved intoεphases

improving the brittleness ofεphase.Formation of the other phases in high zinc aluminum alloy is related with various Cu/RE ratio.With Cu/RE of 8to 1（1.6% Cu and 0.2%RE）

tensile strength

hardness and elongation of the alloy reach 287MPa

HB103and 6.3%

respectively.