Al-Mg-Si-Cu合金薄板不同取向的组织与性能

王文熙; 孙有平; 周学浩; 何江美; 李旺珍

doi:10.15980/j.tzzz.2017.08.004

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Al-Mg-Si-Cu合金薄板不同取向的组织与性能
Microstructure and Properties of Al-Mg-Si-Cu Alloy at Different Orientation
2017年37卷第8期页码：824-826
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.08.004

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[1]王文熙,孙有平,周学浩,何江美,李旺珍.Al-Mg-Si-Cu合金薄板不同取向的组织与性能[J].特种铸造及有色合金,2017,37(08):824-826.

Wang Wenxi, Sun Youping, Zhou Xuehao, et al. Microstructure and Properties of Al-Mg-Si-Cu Alloy at Different Orientation[J]. Special Casting & Nonferrous Alloys, 2017,37(8):824-826.
[1]王文熙,孙有平,周学浩,何江美,李旺珍.Al-Mg-Si-Cu合金薄板不同取向的组织与性能[J].特种铸造及有色合金,2017,37(08):824-826. DOI： 10.15980/j.tzzz.2017.08.004.

Wang Wenxi, Sun Youping, Zhou Xuehao, et al. Microstructure and Properties of Al-Mg-Si-Cu Alloy at Different Orientation[J]. Special Casting & Nonferrous Alloys, 2017,37(8):824-826. DOI： 10.15980/j.tzzz.2017.08.004.

摘要

采用拉伸测试、金相组织观察、断口组织分析等方法

研究了轧制态和热处理态Al-Mg-Si-Cu合金板材在不同取向条件下的微观组织结构和力学性能。结果表明

Al-Mg-Si-Cu合金板材表现了比较明显的各向异性特征

随着与轧制方向取向角的增大

轧制态Al-Mg-Si-Cu合金板材的强度先减小后增大

伸长率则先增大后减小;经热处理后

Al-Mg-Si-Cu合金的强度与伸长率均随着取向角的增大呈先增大后减小的趋势

在60°方向其抗拉强度具有最大值

为366.3 MPa

在45°方向其伸长率最大

为24%。

Abstract

With the help of tensile test

microstructure observation and fractograph analysis

the microstructure and mechanical properties of rolling Al-Mg-Si-Cu and heat treatment Al-Mg-Si-Cu alloy at the different orientation were investigated.The results show that Al-Mg-Si-Cu alloy has obvious anisotropic characteristics.The strength of the Al-Mg-Si-Cu alloy plate is decreased firstly and then increased while elongation is increases firstly and then decreased with the increase of the orientation angle.After heat treatment

strength and elongation of the alloy are increases firstly and then decreased with increasing in orientation angle.The maximum strength reaches 366.3MPa at 60°

while the maximum elongation reaches up to 24% at 45°.