Friction piece, mechanical system comprising such a friction piece and method of implementation
AssigneeH.E.F.
InventorsChristophe HEAU, Philippe MAURIN-PERRIER
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Abstract
The present invention concerns a friction piece (10) suitable for operating in a lubricated medium at a temperature higher than 200° C. The piece (10) comprises a metal surface (12) and an external coating (14) composed of tungsten carbide doped with nitrogen WC(N) with an atomic ratio of nitrogen between 5 and 12%. The invention also relates to a mechanical system (1) comprising such a piece (10). The invention also relates to a method for implementing such a piece (10).
Claims12
A friction piece having a metal surface and an outer coating layer, wherein the outer coating layer is composed of tungsten carbide doped with nitrogen WC(N) with an atomic ratio of nitrogen between 5% and 12%.
Dependencies are inferred from the claim text.