7A04铝合金板材双重淬火工艺研究  

Process research of double quenching for 7A04 aluminum alloy sheets

作　　者：郭红[1] 邵海霞[1] 李丹[1] 胡国勇[1] 曹新宇[1] 李琳琳[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7期26-29,共4页Light Alloy Fabrication Technology

摘　　要：针对7A04高强度铝合金板材塑性低、抗腐蚀性能不好的问题,对板材分别采用一次淬火单级时效、一次淬火双级时效、双重淬火单级时效、双重淬火双级时效4种热处理工艺试验,检测其力学性能、显微组织和抗腐蚀性能。试验结果表明,采用双重淬火双级时效的热处理工艺能使7A04铝合金板材获得最好的综合性能。Due to the low ductility and poor corrosion resistance of the high strengths 7A04 aluminum alloy sheets,the sheets have been experimented through four processes of heat-treatment.They are：single quenching and ageing,single quenching with double ageing,double quenching with single ageing,and double quenching with double ageing.The mechanical properties,micro-structures and the corrosion have been investigated.The results show that the double quenching with a single ageing treatment can achieve the best comprehensive properties of the 7A04 aluminum alloy sheets.

关 键 词：7A04铝合金板材 双重淬火 热处理 

分 类 号：TG156.3[金属学及工艺—热处理]