Wear resistant component and process therefor
AssigneeHamilton Sundstrand Corporation
InventorsPaul Cummings, Lei Chen, Brodie Gross, Jordan Pugliese, Eric Karlen
Life of this patent
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Abstract
A method for providing a wear-resistant component includes depositing an aluminum coating on a steel component to provide an aluminum-coated steel component, and subjecting the aluminum-coated steel component to a plasma electrolytic oxidation (PEO) process. The PEO process converts a surface portion of the aluminum coating to alumina. A wear-resistant component includes a steel component and a wear-resistant coating on the steel component. The wear-resistant coating includes an alumina surface portion and an underlying portion of either aluminum or aluminum and nickel combination or nickel aluminide that contacts the steel component.
Claims9
A method comprising:
- depositing a nickel coating onto a steel component;
- depositing an aluminum coating onto the nickel coating to provide an aluminum-nickel-coated steel component;
- heat-treating the aluminum-nickel-coated steel component to form a diffusion zone of nickel aluminide, an overlying portion of the aluminum coating remaining as aluminum after the heat-treating;
- and
- subjecting the aluminum-nickel-coated steel component to a plasma electrolytic oxidation (PEO) process, the PEO process converting a surface portion of the overlying portion of the aluminum coating to alumina, an underlying portion of the aluminum coating remaining as aluminum after the PEO process.
Dependencies are inferred from the claim text.