过烧对7150铝合金显微组织和性能的影响  

Influence of overfire on microstructures and mechanical properties of 7150 aluminum alloy

作　　者：张世兴[1] 蒋国兴[1] 高建华[1] 

机构地区：[1]河南工业大学机电工程学院,河南郑州450007

出　　处：《轻合金加工技术》2010年第5期53-55,共3页Light Alloy Fabrication Technology

基　　金：河南省郑州市2007科技攻关基金资助项目(5-67)

摘　　要：研究了7150铝合金固溶过程中过烧对其组织和性能的影响。结果表明,随着固溶温度升高过烧程度越严重;过烧使合金产生复熔结构,弱化晶界。The solution treatment process of the 7150 aluminum alloy was researched and the influence of overfire on the mi- crostructures and hardness of the 7150 aluminum alloy was analyzed. It is shown that overfire level of the 7150 aluminum alloy were raised while the properties dropped down with the hoisting of the solution treatment temperature. Compound-melting structure appeared（ burnt structure） in 7150 alloys and then weakened the grain boundary.

关 键 词：7150铝合金 固溶处理 过烧 显微组织 硬度 

分 类 号：TG166.3[金属学及工艺—热处理]