Publisher : The Korean Institute of Surface Engineering
DOI : 10.5695/JKISE.2015.48.6.354
Title & Authors
Evaluation of Electrochemical Corrosion Characteristics for Hot-Dip Aluminized 304 Stainless Steel in Seawater Chong, Sang-Ok; Park, Il-Cho; Han, Min-Su; Kim, Seong-Jong;
Stainless steel has poor corrosion resistance in marine environment due to the breakdown of a passive film caused by chloride. It suffers electrochemical corrosion like pitting corrosion, crevice corrosion, and stress corrosion crack (SCC) in marine environment. In general, it indicates that the passive film of has better corrosion resistance than that of in seawater. This paper investigated the damage behavior 304 stainless steel and hot-dip aluminized 304 stainless steel in seawater solution. Various electrochemical experiments were carried out including potential measurement, potentiodynaimic experiment, Tafel analysis and galvanostatic experiment. As a result of anodic polarization experiment, higher pitting damage depth was indicated at 304 stainless steel than hot-dip aluminized 304 stainless steel. In addition, relatively higher corrosion current density was shown at hot-dip aluminized stainless steel as a result of Tafel analysis.
Electrochemical Characteristics under Cavitation-Erosion Environment of STS 304 and Hot-Dip Aluminized STS 304 in Sea Water Solution, Journal of the Korean institute of surface engineering, 2016, 49, 1, 26
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