A multi-element oxide doped corrosion resistant and friction reducing plasma arc cladding coating and a method of making the same

Abstract

The application discloses a kind of multi-element oxide doped corrosion-resistant friction-reducing plasma arc cladding coating, which is composed of the following oxides with mass percentage: SiO2 55%~60%, Al2O 3 5%~10%, B2O 3 5%~12%, CaO 10%~15%, SrO 5%~10%, BaO 5%~10%; The coating preparation method is: one, oxide powder is mixed after proportioning, ball milling and smelting; Two, after water quenching, drying and ball milling; Three, slurry is prepared and sprayed; Four, preheating; Five, plasma arc cladding.The coating of the application uses CaO, BaO and SrO with low melting point and high thermal expansion coefficient, promotes the formation of uniform high-temperature melt of multi-element oxide, ensures its corrosion-resistant and friction-reducing performance and adapts to the thermal expansion coefficient of different metal substrates; The application uses high-energy-density plasma arc cladding to realize uniform doping of multi-element corrosion-resistant oxide, and improves the corrosion resistance and wear resistance of the coating.

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