Microstructure and Abrasive Wear Behaviour of HVOF Sprayed Carbide-Based Cermet Coatings
Thermally sprayed carbide-based cermet coatings are being widely used for a variety of wear resistance applications. These coatings deposited by high velocity oxy-fuel (HVOF) technique are known to provide improved wear performance. In the present study, WC-12Co and Cr3C2-25NiCr carbide-based cermet coatings are deposited by HVOF. The microstructure and abrasion wear resistance of these coatings are compared. The correlation between coating microstructure and the coating wear behavior was investigated. The results indicated that WC-12Co coating has higher microhardness and better abrasive wear resistance in comparison to Cr3C2-25NiCr coating. The two HVOF sprayed carbide-based coatings have different abrasive wear behaviour.
H. T. Wang et al., "Microstructure and Abrasive Wear Behaviour of HVOF Sprayed Carbide-Based Cermet Coatings", Advanced Materials Research, Vols. 211-212, pp. 182-185, 2011