机械制造文摘一
婵接分册
高强铝合金搅拌擦焊接头腐蚀防护研究进展
李文亚，李娜，傅田，张志函
行业聚焦
（西北工业大学凝固技术国家重点实验室陕西省摩擦焊接工程技术重点实验室，陕西西安710072）摘要：搅拌摩擦焊被广泛应用于航空航天等重要工业领域的高强铝合金结构件的连接，由于高强铝合金接头的抗腐蚀性能较差，限制了其进一步的应用，实际应用中必须对接头进行腐蚀防护。文中详细综述了目前高强铝合金搅拌摩擦焊接头的四种腐蚀防护方法：降低热量输入、焊后热处理、表面改性和喷涂涂层，指出了高强铝合金搅拌摩擦焊接头腐蚀防护今后的研究方向。
关键词：搅拌摩擦焊；高强铝合金：腐蚀防护中图分类号：TG174.4
Recentprogressincorrosionprotectionoffrictionstirwelded
high-strengthaluminumalloyjoints
LiWenya,LiNa,FuTian,Zhang Zhihan
(State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding
Technologies,NorthwesternPolytechnical University,Xi'an710072,China)
Abstract: Friction stir welding (FSW) has been widely used in many industries, with which high-strength aluminum alloys can be well joined. However, the corrosion resistance of FSW high-strength Al alloy joints is relatively poor, which limits their industrial applications. The joints shall be protected against corrosion. In this review, therefore, the current status and development of corrosion protection for FSW high-strength Al alloy joints are presented. Particular emphasis has been given to different protection methods: lowering heat input, post-weld heat treatment, surface modification and spray coatings. Finally, opportunities are identified for
further research and development in corrosion protection of FSW high-strength Al alloy joints. Key words: friction stir welding; high-strength aluminum alloy; corrosion protection
0前言
搅拌摩擦焊作为一种优质、高效、环保的固相连
接方法，可以避免熔化焊接过程中产生的气孔、裂纹、偏析等缺陷，有效提高接头的力学性能。基于此，搅拌摩擦焊（FSW）现已被广泛用于航空、航天、船舶、
基金项目：国家自然科学基金面上项目“冷喷涂热冲击与喷丸效应协同诱导高强铝合金投拌摩焊接头强韧化机制及可调控性研究”(51574196)，
2016年第5期
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