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Study on the Corrosion Resistance and Mechanism of Hot-dipped Mg-Zn Alloy Coating

Jin Dao-guang

Abstract

By the neutral salt spray testing,full-dipping testing and the linear polarization method in electrochemistry,the corrosion resistances of Mg-Zn alloy coatings with different components were measured,and compared with those of other developed alloy coatings.This paper also studied the relation between corrosion resistance and Mg content of the coating,probed into the corrosion mechanism of Mg-Zn alloy coatings by observing its surface appearance using SEM,and measured its corrosion products in Na2SO4 solutions using XRD.

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Key concepts: Corrosion, Materials science, Alloy, Coating, Metallurgy, Polarization (electrochemistry), Electrochemistry, Salt spray test