Anti-Corrosion Performance of Zn-Al Thermal Metal Spraying Method Using Steel Structures

Abstract:

This study performs an electrochemical experiment to quantitatively evaluate the corrosion resistance performance in a Zn-Al thermal metal spraying method and produces corrosion current density according to the type of corrosion resistance methods. In the results of the calculation, the corrosion membrane produced in a Zn-Al thermal metal spraying method showed voltage differences more than 300 mV and that demonstrated enough corrosion performance with the corrosion resistance reaction of base materials and proper Zn-Al ratio, such as 50:50. Also, the results exhibited that the corrosion speed in a Zn-Al thermal metal spraying method was 0.66 time faster than that of the zinc galvanizing method in the estimation based on the standard of corrosion resistance service years in a zinc galvanizing method (JIS H 8641).

• Periodical: Key Engineering Materials (Volumes 348-349)
• Pages: 453-456
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.348-349.453
• Online since: September 2007
• Authors: Sang Hyun Lee, Han Seung Lee, Je Woon Kyung, Chang Soo Kang, Man Hae Han
• Keywords: Corrosion, Corrosion Protection, Electrochemical Experiment, Metal Spraying Method, Steel Structure, Zn-Al

References

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DOI: 10.1680/ccd.28197.0010

[2] Motohashi, K. Kondo, T. Masuda, Y. Hamaki, H. and Nozawa, Y., Application of sprayed metal coating to repair work, Proceedings of CIB W70 International Symposium, 1998, pp.281-287.