Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (7): 28-32,67.doi: 10.3969/j.issn.1000-565X.2015.07.005

• Materials Science & Technology • Previous Articles     Next Articles

Effects of Electric Pulse Treatment on Corrosion Resistance of Silicon Brass

Zhao Zuo-fu1 Qi Jin-gang2 Wang Jian-zhong2 Liu Xing-jiang2 Wang Jia-yi2   

  1. 1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou 121001, Liaoning, China
  • Received:2014-10-28 Revised:2015-04-16 Online:2015-07-25 Published:2015-06-03
  • Contact: 赵作福( 1978-) ，男，博士，主要从事外场作用下金属凝固理论及应用研究. E-mail:zzf197810089927@163.com
  • About author:赵作福( 1978-) ，男，博士，主要从事外场作用下金属凝固理论及应用研究.
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51354001)

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Abstract: The effects of the electric pulse treatment on the corrosion resistance of silicon brass are investigated by using an electrochemical workstation and a SEM. The results show that, after the electric pulse treatment, the corrosion potential of silicon brass increases while the corrosion current density decreases by about one order of magnitude, and that the electric field treatment increases the capacitive reactance diameter of silicon brass by 5~6 times and decreases the thickness of dezincification layer from 80~90 μm to 15~20 μm. It is thus concluded that the corrosion resistance of silicon brass alloy is improved after the electric field treatment.

Key words: electric pulse treatment, silicon brass, corrosion resistance, corrosion potential, corrosion current density

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