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US 2020/0149154 A1Published application
Chromium-enriched diffused aluminide coating
AssigneeUnited Technologies Corporation
InventorsMark A. Livings, Chelsea Brown
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Abstract
A method of applying a protective coating to an article comprises the steps of a) depositing aluminum in a surface region of an article, and b) depositing chromium is the surface region of the article subsequent to step a), whereby at least a portion of the chromium replaces at least a portion of the aluminum. Another method and an article are also disclosed.
Claims7
An article, comprising:
- a base alloy;
- a corrosion-resistant coating on the base alloy, the corrosion-resistant coating containing a region of approximately 20%-40% chromium;
- and
- an aluminum diffusion zone disposed between the base alloy and the corrosion-resistant coating.
1 more element
Dependencies are inferred from the claim text.