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US 12,467,523 B2Granted
Coating for a tribological surface of a component
AssigneeGE Avio S.r.l.
InventorsLucia Azzini, Fabio De Bellis, Andrea Piazza
Life of this patent
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Abstract
A component includes a metallic substrate having a tribological surface and a coating. The coating includes a first layer disposed on the tribological surface and a second layer disposed on the first layer. The first layer includes titanium, chromium, or a diamond-like carbon (DLC). The second layer includes a disulfide.
Claims8
A component comprising:
- a metallic substrate having a tribological surface;
- and
- a coating comprising:
- a first layer disposed on the tribological surface, the first layer comprising chromium nitride (CrN), hard chromium, thin dense chrome (TDC) or chromium, wherein the first layer has a thickness of 0.25 microns to 12 microns;
- and
- a second layer disposed on the first layer, the second layer comprising a disulfide.
3 more elements
A gearbox comprising:
- a first gear comprising a metallic substrate having a tribological surface and a coating, the coating comprising a first layer disposed on the tribological surface and a second layer disposed on the first layer, wherein the first layer comprises chromium nitride (CrN), hard chromium, thin dense chrome (TDC) or chromium, and wherein the first layer has a thickness of 0.25 microns to 12 microns, and wherein the second layer comprises a disulfide.
Dependencies are inferred from the claim text.