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http://dx.doi.org/10.14773/cst.2014.13.5.195

Development of Zn-Al thermal diffusion coating technology for improving anti-corrosion of various metal products  

Lee, Joo-Young (Department of Chemical and Biological Engineering, Korea National University of Transportation)
Lee, Joo-Hyung (Department of Aeronautical and Mechanical Design Engineering, Korea National University of Transportation)
Hwang, Joon (Department of Aeronautical and Mechanical Design Engineering, Korea National University of Transportation)
Lee, Yong-Kyu (Department of Chemical and Biological Engineering, Korea National University of Transportation)
Publication Information
Corrosion Science and Technology / v.13, no.5, 2014 , pp. 195-203 More about this Journal
Abstract
Modern industry has a wide variety of application areas such as ocean industry, construction and automobile industry. With the current circumstances, the need for anti-corrosion technology that can be used on materials to withstand in harsh environments, is increasing. In this study, we have sought to develop a metal coating technology with zinc and aluminum powders as a potential anti-corrosion material. To make a coating on metal products, a thermal diffusion coating method was used under the conditions of $350^{\circ}C$ for 30 minutes. Optical microscope, Field emission scanning electron microscope (FE-SEM&EDX) and X-ray diffraction analysis were used to analyze a coating layer. As a result, we have confirmed that the generated amount of rust on metal parts coated with thermal diffusion coating method decreased dramatically compared with non-coated metal parts. Furthermore, the anti-corrosion performance was evaluated according to the different ratio of zinc and aluminum. Finally, we confirmed the possibility of application and commercialization of our coating technique on metal parts used in harsh industrial based on the results of these performance.
Keywords
anti-corrosion; metal products; Zinc-Aluminum; thermal diffusion coating;
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