Method of providing a metallic surface with a protective chromium diffusion layer
AssigneeMTU Aero Engines AG
InventorsHeinrich WALTER, Ludwig HILSER
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Abstract
The invention relates to a method of providing a metallic surface with a protective diffusion layer, wherein a chromium-containing slip is applied to the surface and is then subjected to a heat treatment in order to produce the protective diffusion layer. In addition to the chromium powder, the slip contains silicon powder in order to shorten the hold time required in the heat treatment.
Claims21
-15. (canceled)
A method of providing a metallic substrate with a protective diffusion layer, wherein the method comprises applying a slip comprising chromium powder and silicon powder in one or more layers to the substrate, drying the slip and then subjecting the substrate to a heat treatment to form the protective diffusion layer.
Dependencies are inferred from the claim text.