Metal glass has excellent functions such as high toughness andcorrosion resistance. Therefore it is one of the most attractivematerials, and many researchers have conducted variousdevelopmental research works. However, the metal glassmaterial is expensive and the composite material is preferredfor the industrial application.Thermal spraying method is one of potential candidates toproduce those metal glass composites. The gas tunnel typeplasma system, which has high energy density and efficiency,is useful for smart plasma processing to obtain high qualityceramic coatings such as alumina (Al2O3) and zirconia (ZrO2)coatings.In this study, the Fe-base metal glass coatings were producedby the gas tunnel type plasma spraying, and the microstructureand mechanical property were investigated. The Fe-base metalglass coatings of 100μm in thickness were formed denselywith Vickers hardness of Hv =1000 at plasma current of 300A.
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