In-situ Investigation on the Pitting Corrosion Behavior of Friction Stir Welded Joint of AA2024 Aluminium Alloy

摘要：

　　The surface corrosion behavior of an AA2024-T3 aluminium alloy sheet after friction stir welding was investigated by using an ”in-situ observation” method.SEM observations showed that the density and degree of the pitting corrosion in the shoulder active zone were slightly larger compared to the other regions on the top surface.The origins of the pitting corrosion were in the regions between the S phase particles and the adjacent aluminium base.The effect of Al-Cu-Fe-Mn-(Si) intermetallic compounds on the pitting corrosion was attributed to their high self-corrosion potential which induced the anodic dis-solution of the surrounding aluminium matrix.

关键词： A.Aluminium A.Intermetallics B.SEM C.Pitting corrosion C.Welding

作者: Ju Kang Rui-dong Fu Guo-hong Luan Chun-lin Dong Miao He

作者单位: College of Materials Science and Engineering,Yanshan University, Qinhuangdao, Hebei Prov.066004, PR State Key Laboratory of Metastable Materials Science and Technology, Qinhuangdao,Hebei Prov.066004, China FSW Center,Beijing FSW Technology Limited Company, Beijing 100024, PR China

会议类型: 国内会议

会议名称: 第二届搅拌摩擦焊国际会议

会议地点: 北京

会议语种:英文

页码: 228-237

在线出版日期: 2012-10-18（万方平台首次上网日期，不代表论文的发表时间）