华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (7): 28-32,67.doi: 10.3969/j.issn.1000-565X.2015.07.005

• 材料科学与技术 • 上一篇    下一篇

电脉冲处理对硅黄铜耐蚀性能的影响

赵作福1 齐锦刚2 王建中2 刘兴江2 王家毅2   

  1. 1. 北京科技大学 冶金与生态工程学院,北京 100083; 2. 辽宁工业大学 材料科学与工程学院,辽宁 锦州 121001
  • 收稿日期:2014-10-28 修回日期:2015-04-16 出版日期:2015-07-25 发布日期:2015-06-03
  • 通信作者: 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
  • 作者简介: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.
  • 基金资助:
    国家自然科学基金资助项目( 51354001) ; 辽宁省教育厅项目( LZ2014031) ; 辽宁省教育厅团队项目( LT2013014)

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)

摘要: 采用电化学工作站和扫描电子显微镜等研究了电脉冲处理对硅黄铜合金耐蚀性 能的影响. 研究结果表明: 经电脉冲处理后,硅黄铜合金的腐蚀电位略有提高,自腐蚀电流 密度下降约一个数量级; 容抗弧直径大小是未处理时的6 ~ 7 倍,其脱锌层厚度由未处理 时的80 ~ 90μm 减小到电脉冲处理后的15 ~ 20μm. 电脉冲处理后硅黄铜合金的耐蚀性优 于未进行电脉冲处理的硅黄铜合金.

关键词: 电脉冲处理, 硅黄铜, 耐蚀性能, 腐蚀电位, 自腐蚀电流密度

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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