极化时间对Pb-Ca-1.2%Sn合金阳极的影响  

Effects of Polarization Time on Properties of Pb-Ca-1.2%Sn Alloy Anode

作　　者：王帅[1] 郭忠诚[1,2] 陈步明[1,2] 周松兵[1] 陈影[1] 

机构地区：[1]昆明理工大学冶金与能源工程学院,云南昆明650093 [2]昆明理工恒达科技股份有限公司,云南昆明650106

出　　处：《电镀与精饰》2014年第8期9-13,共5页Plating & Finishing

摘　　要：采用阳极极化曲线、塔菲尔曲线、循环伏安曲线、交流阻抗曲线和腐蚀性能的测试研究了不同极化时间对交叉轧制八次的Pb-Ca-1.2%Sn合金阳极的性能影响。实验结果表明,随着极化时间的增加,合金阳极的耐腐蚀性和导电性逐渐增加,而析氧电位逐渐降低。其中,以极化时间为12天的Pb-Ca-1.2%Sn合金阳极的性能最佳。Polarization time effects on the properties of 8 cross-rolled Pb-Ca-1.2% Sn alloy anode were studied by anodic polarization curve,Tafel curve,cyclic voltammetry curve,electrochemical impedance curve and corrosion test.Results showed that：with increasing of the polarization time,corrosion resistance and conductivity of the anode increased gradually while the oxygen evolution potential decreased gradually.When the polarization-time was 12days,the Pb-Ca-1.2% Sn alloy anode was the best.

关 键 词：极化时间 Pb-Ca-1 2%Sn合金阳极 耐腐蚀性 导电性 

分 类 号：TG174.42[金属学及工艺—金属表面处理]