| 7075/6009铝合金层状复合板材的固溶时效热处理工艺 |
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| 引用本文： | 郑小平,张卫文,邵明,李元元.7075/6009铝合金层状复合板材的固溶时效热处理工艺[J].机械工程材料,2012(7):41-45,104. |
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| 作者姓名： | 郑小平 张卫文 邵明 李元元 |
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| 作者单位： | 华南理工大学机械与汽车工程学院 |
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| 基金项目： | 教育部“新世纪人才支持计划”项目(NCET-07-0310);广东省科技攻关项目(2008A010300003);中央高校基本科研业务费资助项目(2009ZM0278) |
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| 摘 要： | 对7075/6009铝合金层状复合板材进行了不同的固溶时效处理,优化得到了该复合板最佳的热处理工艺,并对热处理后复合板的力学性能和拉伸断口进行了分析。结果表明:该复合板最佳的热处理工艺为485℃×30min水淬+175℃×8h炉冷,其抗拉强度为404MPa,屈服强度为364MPa,伸长率为15.3%;外层6009铝合金的拉伸断口上分布着大量韧窝,内外层合金间实现了良好的冶金结合。
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| 关 键 词： | 层状复合板材 铝合金 固溶时效 显微组织 力学性能 |
Heat Treatment Process for 7075/6009 Aluminum Alloy Laminated Composite Plate |
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| ZHENG Xiao-ping,ZHANG Wei-wen,SHAO Ming,LI Yuan-yuan.Heat Treatment Process for 7075/6009 Aluminum Alloy Laminated Composite Plate[J].Materials For Mechanical Engineering,2012(7):41-45,104. |
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| Authors: | ZHENG Xiao-ping ZHANG Wei-wen SHAO Ming LI Yuan-yuan |
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| Affiliation: | (School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Different solid solution and aging treatments were performed with 7075/6009 aluminum alloy laminated composite plate to obtain the optimal heat treatment process,and the mechanical properties and tensile fracture of the composite plate after heat treatment were analyzed.The results show that the optimal heat treatment process of the composite plate was solid solution at 485 ℃ for 30 min followed by water quenching and aging at 175 ℃ for 8 h followed by cooling in furnace.The tensile strength,yield strength and elongation of the composite plate were 404 MPa,364 MPa and 15.3 %,respectively.A lot of dimples was found on the tensile fracture of outer layer 6009 aluminum alloy and the innerlayer and outerlayer alloys had a good metallurgical bonding. |
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| Keywords: | laminated composite plate aluminum alloy solid solution and aging microstructure mechanical property |
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