HVOF spraying was used to prepare coatings from mechanical blends of Cr3C2-25NiCr and NiCrBSi powders. The aim of the work was to study the influence of addition of a metallic phase on tribological properties of the coatings in sliding conditions. Tribological properties of the coatings were characterised under dry sliding. Addition of NiCrBSi decreased the coefficient of friction in high temperature, pressure and sliding speed.

alloy powder, chromium carbide-nickel chromium coating, coefficient of friction, high-velocity oxyfuel spray coating, nickel-chromium-boron-silicon alloys, tribological properties
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2010
DVS Media GmbH
Topics
Ceramic powder Alloy powder Nickel-chromium alloys High-velocity oxyfuel spray coating Coefficient of friction Chromium carbide cermets
Issue Section:
Wear Protection
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