人工时效后2B16铝合金电子束焊接接头的组织与性能  

Microstructure and properties of 2B16 aluminum alloy electron beam welding joints after artificial aging

作　　者：黄锐[1] 付鹏飞[2] 付钢[2] 左从进[2] 

机构地区：[1]成都飞机工业集团钳焊导管厂,四川成都610092 [2]北京航空制造工程研究所高能束流加工技术国防科技重点实验室,北京100024

出　　处：《金属热处理》2009年第1期43-45,共3页Heat Treatment of Metals

摘　　要：通过金相分析、室温拉伸试验对人工时效2B16铝合金电子束焊接接头组织和性能进行了研究。结果表明,电子束焊接2B16铝合金薄板和厚板接头分别呈"漏斗形"及"典型钉形";焊缝区及热影响区由基体α(Al)相及α(Al)-θ(CuAl2)等共晶相组成;人工时效后21mm厚2B16铝合金电子束焊接接头室温强度系数达到母材的77.8%。Microstructures and properties of 2B16 aluminum alloy electron beam welding（EBW） joints after artificial aging were investigated by metallographic analysis and room temperature tensile test. The results show that the EBW joints of 3 mm and 21 mm thickness for 2B16 aluminum alloy plates appear funnel-form and nail shape respectively. The a（A1） phase is the base microstructure in weld zone and HAZ ,with α（ Al）--θ（ CuAl2 ）eutectie. The tensile strength of 21 mm thickness 2B16 aluminum alloy EBW joints after artificial aging is 77. 8% as compared with base metal at room temperature.

关 键 词：人工时效 电子束焊接 铝合金 

分 类 号：TG402[金属学及工艺—焊接]