Cu、Mg对Al-Si-Cu-Mg合金力学性能的影响

陈大辉; 黄文淑; 汤进军; 侯立群; 费良军

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Cu、Mg对Al-Si-Cu-Mg合金力学性能的影响
Effects of Cu,Mg on Mechanical Properties of Al-Si-Cu-Mg Alloy
2011年31卷第4期页码：367-368
纸质出版日期： 2011 ，
DOI：

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[1]陈大辉,黄文淑,汤进军,侯立群,费良军.Cu、Mg对Al-Si-Cu-Mg合金力学性能的影响[J].特种铸造及有色合金,2011,31(04):367-368+398.

Chen Dahui1, Huang Wenshu2, Tang Jinjun1, et al. Effects of Cu,Mg on Mechanical Properties of Al-Si-Cu-Mg Alloy[J]. Special Casting & Nonferrous Alloys, 2011,31(4):367-368.
[1]陈大辉,黄文淑,汤进军,侯立群,费良军.Cu、Mg对Al-Si-Cu-Mg合金力学性能的影响[J].特种铸造及有色合金,2011,31(04):367-368+398. DOI：

Chen Dahui1, Huang Wenshu2, Tang Jinjun1, et al. Effects of Cu,Mg on Mechanical Properties of Al-Si-Cu-Mg Alloy[J]. Special Casting & Nonferrous Alloys, 2011,31(4):367-368. DOI：

摘要

通过调整Cu（3.0%～3.8%）、Mg（0～0.4%）的含量

研究了在砂型铸造条件下Cu、Mg含量对Al-Si-Cu-Mg合金力学性能的影响。结果表明

少量的Mg（0.2%～0.3%）能有效提高合金的强度

Cu为3.5%、Mg为0.3%时合金的性能最佳

室温抗拉强度和伸长率分别为355MPa和5%。

Abstract

Effects of different Cu

Mg contents

such as Cu in 3.0%～3.8% and Mg in 0～0.4%

on mechanical properties of sand casting Al-Si-Cu-Mg alloy were investigated by tensile testing.The results reveal that minor Mg content（0.2%～0.3%） can effectively improve the strength of the alloy.Ambient tensile strength and elongation of the alloy containing 3.5% Cu and 0.3% Mg reach up to 355MPa and 5%

respectively.