CPC C23G 1/10 (2013.01) [B64F 5/40 (2017.01); C11D 7/06 (2013.01); C11D 7/08 (2013.01); C11D 7/3245 (2013.01); C11D 11/0023 (2013.01); C23C 16/0227 (2013.01); C23C 16/34 (2013.01); C23C 16/40 (2013.01)] | 20 Claims |
1. A method of refurbishing an aerospace component, comprising:
exposing an aerospace component containing corrosion to an aqueous cleaning solution, wherein the aerospace component comprises a nickel superalloy, an aluminide layer disposed on the nickel superalloy, and an aluminum oxide layer disposed on the aluminide layer, and wherein the corrosion is contained on a first portion of the aluminum oxide layer while a second portion of the aluminum oxide layer is free of the corrosion;
removing the corrosion from the first portion of the aluminum oxide layer with the aqueous cleaning solution to reveal the first portion of the aluminum oxide layer; then
exposing the first and second portions of the aluminum oxide layer to a post-rinse; and
forming a protective coating on the first and second portions of the aluminum oxide layer.
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