Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (7): 584-588. Previous Articles     Next Articles

Original Articles

铅铈和铅钙锡合金阳极腐蚀膜的性能研究

李党国, 周根树*, 姚靓, 郑茂盛   

  1. (西安交通大学金属材料强度国家重点实验室 西安 710049)
  • 收稿日期:2006-03-08 修回日期:2006-12-27 出版日期:2007-04-14 发布日期:2007-04-14
  • 通讯作者: 周根树

Investigation on Properties of Anodic Corrosion Films Formed on Pb-Ce and Pb-Ca-Sn Alloys

LI Dang-Guo; ZHOU Gen-Shu*; YAO Liang; ZHENG Mao-Sheng   

  1. (State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049)
  • Received:2006-03-08 Revised:2006-12-27 Online:2007-04-14 Published:2007-04-14
  • Contact: ZHOU Gen-Shu

The anodic corrosion films of Pb-Ce and Pb-Ca-Sn alloys formed at 1.28 V in 4.5 mol/L H2SO4 were investigated by means of linear sweep voltage (LSV), AC voltage, AC impedance and X-ray photoelectron spectrosocopy (XPS). The results showed that the growth of the Pb(II) compounds in the anodic film was inhibited, and Ce could also decrease the electric resistance of the corrosion films and increase the porosity. The over-potential of hydrogen evolution on lead alloy with Ce additive increased, which was helpful to improve the maintenance-free property of lead acid battery.

Key words: AC voltage, linear sweep voltage, AC impedance, XPS, Pb-Ce alloy