Journal of Fisheries and Marine Sciences Education (수산해양교육연구)
- Volume 12 Issue 2
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- Pages.164-175
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- 2000
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- 1229-8999(pISSN)
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- 2288-2049(eISSN)
A Study on the Corrosion Control of Glass Flake Lining for Mild Steel in Marine Environment
해양환경 중에서 Glass Flake 라이닝 강재의 부식방지에 관한 연구
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Lim, Uh-Joh
(Pukyong National University) ;
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Kim, Seong-Hoon
(Pukyong National University)
- Published : 2000.12.31
Abstract
Port facilities and marine structures used in marine environment were encountered to corrosion damages because of the influence of Cl-. Generally, to protect these accidents, anti-corrosion paint and epoxy coating have been used. But they were still remained erosion-corrosion damage like impingement erosion, cavitation erosion and deposit attack. It is necessary to develope the new composite lining material in order to protective those corrosion damages. In this paper, polyester glass flake, vinylester glass flake lining and epoxy coating for SS400 were investigated by the electrochemical polarization test and the impingement-cavitation erosion test for corrosion behaviour under the sea water. The main results obtained are as follows ; 1) Epoxy coating appear potentiodynamic polarization behaviour, but polyester glass flake and vinylester glass flake lining do not appear potentiodynamic polarization behaviour. 2) Open circuit potential of polyester glass flake lining is more noble than that of epoxy coating and corrosion current density of polyester glass flake lining is less drained than that of epoxy coating in sea water. 3) Open circuit potential of vinylester glass flake lining is more noble than that of polyester glass flake lining and corrosion current density of vinylester glass flake lining is less drained than that of polyester glass flake lining in the sea water.
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