稀土元素Sm对铅 锡合金在浮充电位时生长的阳极膜的性质的影响(英文)  

Effect of Samarium on the Corrosion of Lead-tin Alloy in Sulfuric Acid Solution at the Floating Charge Potential

作　　者：柳厚田[1] 杨春晓[1] 张新华[1] 周彦葆[1] 周伟舫[1] 

机构地区：[1]复旦大学化学系,上海200433

出　　处：《复旦学报（自然科学版）》2001年第6期688-691,共4页Journal of Fudan University：Natural Science

基　　金：theNationalScienceFoundationofChina (Nos.2 98730 13;2 0 1730 13)

摘　　要：应用线性电位扫描法和交流优安法研究了Pb Sn Sm(x(Sn) =0 .0 1,x(Sm) =0 .0 1)和Pb Sn(x(Sn) =0 .0 1)的合金电极在 1.2 8V(vs.Hg/Hg2 SO4 )电位下 ,4.5mol·dm-3 H2 SO4 溶液中的阳极腐蚀 .结果表明 :钐的添加可以阻抑Pb Sn合金的阳极膜的生长并降低阳极膜中Pb(Ⅱ )氧化物的阻抗 .The corrosion of Pb-Sn-Sm(x(Sn)=0.01,x(Sm)=0.01) and Pb-Sn(x(Sn)=0.01) in 4.5 mol·dm -3 H 2SO 4 solution at 1.28 V(vs.Hg/Hg 2SO 4) have been studied using linear sweep voltammetry and ac. voltammetry. The experimental results show that the samaium added to Pb-Sn alloy can inhibit the growth of the anodic film and reduce the resistance of the Pb(Ⅱ) oxides in the film.

关 键 词：PB-SN合金 浮充电位 稀土元素 铅-锡合金 阳极膜 薄膜生长 腐蚀 

分 类 号：TG174[金属学及工艺—金属表面处理] TG146.12[金属学及工艺—金属学]