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Research on Wear Resistance of Thermo-chemical Reaction Flame Spraying Ceramic Coatings on AZ91D

Zhichao Li

Abstract

Ceramic coatings(Al2O3+TiO2+SiO2+ZnO+Al) was produced by flame spraying on the surface of magnesium alloy AZ91D,In the process of flame spraying accompanied by a thermo-chemical reaction,MgSiO4、MgAl2O4 and so on were found in the coatings by X-ray analysis.The tests show that the wear resistant of ceramic coatings thermo-chemical reaction is better than that of common ceramic coatings.

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Key concepts: Materials science, Ceramic, Wear resistance, Conversion coating, Metallurgy, Chemical reaction, Magnesium, Composite material