摘要
研究了3种不同RE含量的Al-Zn-In-Mg-Ti合金牺牲阳极材料。通过测试合金的电流效率、极化曲线、电化学阻抗谱研究铝合金阳极材料在3％NaCl溶液中的电化学行为。结果表明：Al-5％Zn-0．03％In-1％Mg-0．05％Ti-0．5％RE阳极的电流效率为91．9％，工作电位为-1．020 - -1．033V；稀土元素对阳极材料电位影响较小；随着稀土元素含量的增加，阳极表面氧化膜变厚，溶解变得不均匀。
Three kinds of aluminum alloy anodes materials containing different rare earth contents were researched. The electrochemical behavior of active dissolution of aluminum alloy in 3%NaCl solution was studied by testing current efficiency, polarization curves and electrochemical impendence spectroscopy. The results show： Al-5%Zn-0.03%In-1%Mg-0.05%Ti-0.5%RE is a kind of ideal sacrificial anode with its operating potential from - 1.033 to - 1.020V and current efficiency of 91.9%; The effect of rare earth on the potential is not apparent; The oxide film become thicker and the solution become homogeneous as the increase of rare earth content.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A07期2700-2702,共3页
Journal of Functional Materials
基金
洛阳市科技攻关资助项目（0701025A）
关键词
牺牲阳极
电化学性能
电流效率
电化学阻抗谱
sacrificial anode materials
electrochemical property
efficiency
electrochemical impendence spectroscopy
