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자료유형
학술저널
저자정보
저널정보
한국부식방식학회 Corrosion Science and Technology Corrosion Science and Technology 제17권 제5호
발행연도
2018.1
수록면
231 - 241 (11page)

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초록· 키워드

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Atmospheric corrosion is generally an electrochemical degradation process of metal. It can be causedby various corrosion factors of atmospheric component, weather, and air pollutants. Moisture, particlesof sea salts, and sulfur dioxide are major factors in atmospheric corrosion. Galvanizing coating isone of the most efficient ways to protect iron from corrosion by zinc plating on the surface of theiron. Galvanized steels are being widely used in automobiles, building structures, roofing, and otherindustrial structures due to their high corrosion resistance compared to bare iron. Atmospheric corrosionof galvanized steel has shown complex corrosion behavior depending on coating process, coating thickness,atmospheric environment, and air pollutants. In addition, different types and kinds of corrosion productscan be produced depending on the environment. Lifespan of galvanized steels is also affected by theenvironment. Therefore, the objective of this study was to determine the corrosion behavior of galvanizedsteel under atmospheric corrosion at six locations in Korea. When the exposure time was increased,content of zinc from GA surface decreased while contents of iron and oxygen tended to increase. On the other hand, content of iron was constant even after 36 months of exposure of GI.

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