公开(公告)号：US20220002883A1

公开(公告)日：2022-01-06

申请号：US17339411

申请日：2021-06-04

申请人： Applied Materials, Inc.

发明人： Abhishek MANDAL ,  Nitin DEEPAK ,  Neha GUPTA ,  Prerna Sonthalia GORADIA ,  Ankur KADAM ,  Kenichi OHNO ,  David Alexander BRITZ ,  Lance A. SCUDDER

IPC分类号： C23G1/10 ,  C23C16/02 ,  C23C16/34 ,  C23C16/40 ,  C11D11/00 ,  C11D7/32 ,  C11D7/06 ,  C11D7/08 ,  B64F5/40

摘要： Embodiments of the present disclosure generally relate to methods for refurbishing aerospace components by removing corrosion and depositing protective coatings. In one or more embodiments, a method of refurbishing an aerospace component includes exposing the aerospace component containing corrosion to an aqueous cleaning solution. The aerospace component contains a nickel superalloy, an aluminide layer disposed on the nickel superalloy, and an aluminum oxide layer disposed on the aluminide layer. The method includes removing the corrosion from a portion of the aluminum oxide layer with the aqueous cleaning solution to reveal the aluminum oxide layer, then exposing the aluminum oxide layer to a post-rinse, and forming a protective coating on the aluminum oxide layer.