1. Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou 510080,Guangdong,China 2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang,China 3. State Key Laboratory of Advanced Welding and Joining, Harbin 150001,Heilongjiang, China
Abstract��Corrosion of cooper-aluminum transition connectors is likely to induce failure during service. The corrosion behavior was systematically investigated by using SEM, EDS and XRD and the residual strength of the connector was evaluated through a shear test. Corrosion behavior was observed to occur firstly in ZnSn spelt layer and then on aluminum plate when joints were exposed under salt spray. The residual shear strength of the joints decreased as exposure testing proceeded. Parameters of brazing process affected the corrosion rate slightly and Cu-Al joints fabricated under the process of 12 A��10 s, exhibiting highest residual strength.
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WU Shi-deng1,CHEN Jing2,LIANG Yong-chun1,LIN Jie-dong1,SONG Xiao-guo3,JIANG Jian-tang2. Corrosion Behavior of Cu-Al Brazed Joints in the Salt Spray Environment. Chinese Journal of Iron and Steel, 2012, 30(1): 49-53.
2012, Vol. 30 
