Microstructure and Property of Zr-Based Metallic Glass Coating Formed by Gas Tunnel Type Plasma Spraying
نویسندگان
چکیده
Metallic glass has excellent functions such as high strength and high corrosion resistance. Therefore, it is one of the most attractive materials, and various developmental research works have been conducted by many researchers. However, the metallic glass material is expensive to use, and a composite material is preferred for the industrial application. Thermal spraying method is one of potential candidates to produce such metallic glass composites. The gas tunnel type plasma system, which has high energy density and efficiency, is useful for smart plasma processing to obtain high quality ceramic coatings such as Al2O3 and ZrO2 coatings. In this study, the Zr-based metallic glass (Zr60Cu15Al15Ni7.5Co2.5) coatings were produced by the gas tunnel type plasma spraying, and their microstructure and mechanical properties were investigated. The Zr-based metallic glass coatings of 50 �m in thickness were formed densely with Vickers hardness of Hv=600-700.
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