Study on corrosion mechanism of arc sprayed Zn-Al-Mg coatings by XRD and EIS

摘要：

　　Cored wires and arc spraying were used to produce high Mg content Zn-Al-Mg alloy coatings on low carbon steel substrates.And the corrosion mechanism of the Zn-Al-Mg coatings was investigated comparing with Zn-Al alloy coatings by X-ray diffractometer (XRD) and Electrochemical impedance spectroscopy (EIS).The results show that,The Zn-Al-Mg coatings show higher electrochemical corrosion resistance in salt solution than Zn-Al coatings.With addition of Mg,the corrosion products can block off the pores in the Zn-Al-Mg coating,which is so-called self sealing,and thus prevent attack on the underlying steel substrate.

关键词： Zn-Al-Mg coating arc spraying electrochemical corrosion electrochemical impedance spectroscopy corrosion products X-ray diffractometer self sealing

作者: Zixin Zhu Aijun Li Binshi Xu

作者单位: Aviation Equipment Measuring Center, Beijing, P.R.China National Key Laboratory for Remanufacturing, Beijing, P.R.China

会议类型: 国际会议

会议名称: the 2011 International Conference on Frontiers of Manufacturing Science and Measuring Technology (第一届制造科学与检测技术国际会议(ICFMM2011))

会议地点: 重庆

会议语种:英文

页码: 85-88

在线出版日期: 2011-06-23（万方平台首次上网日期，不代表论文的发表时间）