This paper presents the results of a study on the static friction properties of (Ti,Mo)(C,N)-Ni hardmetal coatings deposited by HVOF spraying. Coating samples were sprayed on quenched and tempered CrMo steel friction rings using an experimental feedstock powder. Friction surfaces were characterized based on the geometry and distribution of prominent peaks and static coefficient of friction was measured. Test results show that the hardmetal coatings have good potential for use in frictionally engaged joints, but more work is needed to establish a correlation between coating properties and friction behavior.

high-velocity oxyfuel spraying, molybdenum carbide-nickel, molybdenum nitride-nickel, static friction coefficient, titanium carbide-nickel, titanium nitride-nickel
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2014
DVS Media GmbH
Topics
Hardfacing High-velocity oxyfuel spray coating Static friction coefficient Particulate-reinforced metal-matrix composites
Issue Section:
Automotive Applications
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