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http://dx.doi.org/10.5916/jkosme.2010.34.5.670

An Electrochemical Evaluation on the Corrosion Property of Metallizing Film  

Moon, Kyung-Man (한국해양대학교 조선기자재공학부)
Shin, Joong-Ha (한국화학시험연구원)
Lee, Myung-Hoon (한국해양대학교 해사대학 기관시스템공학부)
Lee, Sung-Yul (한국해양대학교 조선기자재공학부)
Kim, Yun-Hae (한국해양대학교 공대 조선기자재공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.34, no.5, 2010 , pp. 670-677 More about this Journal
Abstract
There are many surface protection methods for numerous steel structures being used under severely corrosive environment, one of them, metallizing(thermal spray) is a available protection method which is comparatively and recently developed for surrface protection of various steel structures. However coating film obtained by spraying is to be needed increasingly more good corrosion resistance due to accelerating of environmental contamination. In this study, coating films(DFT:$200{\mu}m$) are performed with arc spray by wire metal and their types of films are pure zinc, pure aluminum, alloy film(Al:Zn=85:15) and alloy film(Al:Zn=95:5). And corrosion resistance of their films was investigated with electrochemical methods in seawater solution. Pure aluminum film showed a relatively somewhat good corrosion resistance compared to among those of other films and alloy films also showed a good corrosion resistance compared to pure zinc film. Especially it was observed that pure aluminum film showed a comparatively good corrosion resistance than that of alloy film named as galvarium spray(Al:Zn=85:15) in seawater solution. Morphology of corroded surface of pure zinc film appeared the pattern like intergranlar corrosion, however films of pure aluminum and alloy metal showed a general corrosion pattern.
Keywords
Metallizing; Corrosion resistance; Electrochemical methods; Galvarium spray; Intergranular corrosion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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