铝合金与钢搅拌摩擦铆焊技术研究现状

铝合金与钢搅拌摩擦铆焊技术研究现状 Research status of aluminum alloy and steel friction stir riveting 孙靖 SUN Jing 1 first-author 陈艳 CHEN Yan 1 王旭琴 WANG Xuqin 1 丘廉芳 QIU Lianfang 1 上海航天设备制造总厂有限公司 上海航天设备制造总厂有限公司 Shanghai Aerospace Equipment Manufacturer Limited Company Shanghai Aerospace Equipment Manufacturer Limited Company 搅拌摩擦铆焊技术在连接铝合金与钢领域的研究取得了较大的进展。综述搅拌摩擦铆焊的原理和分类,对铝合金与钢搅拌摩擦铆焊的接头形式、接头区域的微观组织演变、界面金属间化合物种类与影响因素以及接头失效形式进行分析总结。大量研究表明,搅拌摩擦铆焊接头区域按照微观组织演变可划分为锚固区、热机影响区以及热影响区。在铝合金与钢搅拌摩擦铆焊界面结合处易形成FexAly(x<y)型金属间化合物,对接头性能产生危害,而通过表面镀Zn、Zn-Al-Mg或添加Zn元素等可减少有害金属间化合物,提高接头性能。 Frictionstirrivetin（gFSR）hasachievedremarkable success in the joining and processing of aluminum alloys and steels. In this paper,the classification and mechanism of FSR are summarized. The joint types,the microstructure transformation of joint area,the kinds and influence factors of interfacial inter-metallic compounds and the failure mode of the FSR for alu-minum alloy and steel were analyzed and summarized. A great deal of research indicated that based on the microstructure transformation,the joint area can be divided into anchoring zone,thermal-mechanical affected zone and heat affected zone.Due to the friction heating,mechanical reactions occurred at the joining interface,it is easy to generate intermetallic compounds FexAl（yx<y）,which is harmful to the comprehensive properties of the joints. However,the harmful intermetallic compounds can be reduced by addition of Zn element,galvanization or Zn-AlMg coating. 搅拌摩擦铆焊技术 铝合金与钢异种材料 微观组织演变 金属间化合物 失效形式 friction stir riveting aluminum alloy and steel dissimilar materials ficrostructure transformation intermetallic com-pounds failure mode TG453.9 装备预研领域基金项目(61409230510) 2022-03-08 1 50