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%。
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°.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2017年第8期824-826,共3页
Special Casting & Nonferrous Alloys
基金
国家自然科学基金资助项目(51561004)
机械制造系统可靠性控制广西高校重点实验室开放基金资助项目(2014JZKG002)
广西科技大学研究生教育创新计划项目(GKYC201601)
