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합금도금강판의 수적에 의한 표면층의 부식기구에 관한 연구
김영호,김순경,전언찬,Kim, Y.H.,Kim, S.K.,Jeon, E.C. 한국기계가공학회 2002 한국기계가공학회지 Vol.1 No.1
Since the early 1980's the use of zinc-aluminum alloy-coated steel sheet(Galvalume) for vehicular corrosion protection has increased drastically. It is consisting of 55%Al-43.4% Zn-1.6%Si. Galvalume has a good corrosion resistance, heat reflectivity and shiny appearance, which has a dendritic structure of alloy layer. It has a good corrosion resistance due to dendritic structure. But, this also has a weak point against moisture during long period of transportation as sheeted and or coiled without any relation of chromating on the surface of steel sheet or not because of high humidity and temperature. Here, We studied the corrosion mechanism by the moisture.