7075/6009铝合金层状复合板材的固溶时效热处理工艺
Heat Treatment Process for 7075/6009 Aluminum Alloy Laminated Composite Plate
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 ℃×30 min水淬+175 ℃×8 h炉冷, 其抗拉强度为404 MPa, 屈服强度为364 MPa, 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。
铝合金
固溶时效
显微组织
力学性能
laminated composite plate
aluminum alloy
solid solution and aging
microstructure
mechanical property
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.
中图分类号 TG214
所属栏目 试验研究
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)
收稿日期 2011/6/7
修改稿日期 2012/2/8
网络出版日期
作者单位点击查看
备注郑小平(1978-), 男, 广东南雄人, 博士后。
引用该论文: 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 mechancial engineering, 2012, 36(7): 41～45
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, 36(7): 41～45
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参考文献
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【3】ZHANG Y X, YANG C H. Recent developments in finite element analysis for laminated composite plates[J].Composite Structures, 2009, 88(1):147-157.
【4】GRISHABER R B, SERGUEEVA A V, MISHRA R S, et al.Laminated metal composites-high temperature deformation behavior[J].Materials Science and Engineering A, 2005, 403(1/2):17-24.
【5】AYDOGDU M. A new shear deformation theory for laminated composite plates[J].Composite Structures, 2009, 89(1):94-101.
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【7】张卫文, 张大童, 龙雁, 等.高强耐蚀复合铝合金材料:中国, ZL02115163.6[P].2005-06-29.
【8】张卫文, 李元元.半连续铸造法制备AlCu/Al梯度材料[J].中国有色金属学报, 2002, 12(增1):188-191.
【9】郑小平.梯度复合7075/6009铝合金材料的制备与力学性能研究[D].广州:华南理工大学, 2009.
【10】LI Yuan-yuan, ZHENG Xiao-ping, ZHANG Wei-wen, et al.Effect of deformation temperature on microstructures and properties of 7075/6009 alloy[J].Transactions of Nonferrous Metals Society of China, 2009, 19(5):1037-1043.
【11】郑小平, 张卫文, 王珺文, 等.内熔体浇口位置对7075/6009合金铸锭内层组织的影响[J].中国有色金属学报, 2009, 19(1):26-31.
【12】陈康华, 刘红卫, 刘允中.升温固溶对Al-Zn-Mg-Cu合金组织与力学性能的影响[J].中南工业大学学报, 2000, 31(4):339-341.
【13】王祝堂, 田荣章.铝合金及其加工手册[M].长沙:中南大学出版社, 2000.
【14】高革.关于飞机用铝合金7075的热处理[J].轻合金加工技术, 1974(4):12-19.
【15】陈康华, 刘允中, 刘红卫.7075和2024铝合金的固溶组织与力学性能[J].中国有色金属学报, 2000, 10(6):819-822.
【16】曾苏民.影响铝合金固溶保温时间的多因素相关规律[J].中国有色金属学报, 1999, 9(1):79-86.
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