一种Al-Zn-Mg-Cu合金预拉伸板双级过时效处理研究  

Research on double-ageing stretched of Al-Zn-Mg-Cu alloy plate

作　　者：齐国栋[1] 路丽英[1] 徐崇义[1] 刘海江[1] 罗建华[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2010年第8期57-60,共4页Light Alloy Fabrication Technology

摘　　要：采用正交试验研究了一种Al-Zn-Mg-Cu合金厚板的一级时效温度和时间、二级时效温度和时间对其板材组织和性能的影响,试验结果表明二级时效温度是影响该合金板材强度、伸长率和电导率的主要因素,板材采用双级时效处理可获得好的综合性能。确定了该合金板材合理的双级时效制度为:(115±5)℃6 h+(165±5)℃18 h。The effects of the first aging temperature and time,the secondary aging temperature and time on the structure and performance of the Al-Zn-Mg-Cu alloy plate are studied through orthogonal experiments.The result of the experiment indicates that the strength,elongation and electro-conductivity of the alloy plate is affected by the secondary aging.The excellent comprehensive properties of plates can be acquired through the double-aging treatment.The optimum double-aging treatment system for this alloy was determined,which is（115±5）℃ 6 h＋（165±5）℃ 18 h.

关 键 词：AL-ZN-MG-CU合金 双级时效 性能 

分 类 号：TG156.92[金属学及工艺—热处理]