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1. WO2022005696 - METHODS FOR REFURBISHING AEROSPACE COMPONENTS

Publication Number WO/2022/005696
Publication Date 06.01.2022
International Application No. PCT/US2021/035874
International Filing Date 04.06.2021
IPC
B08B 3/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
08CLEANING
BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
3Cleaning by methods involving the use or presence of liquid or steam
04Cleaning involving contact with liquid
08the liquid having chemical or dissolving effect
B08B 3/12 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
08CLEANING
BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
3Cleaning by methods involving the use or presence of liquid or steam
04Cleaning involving contact with liquid
10with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity, by vibration
12by sonic or ultrasonic vibrations
C23C 16/02 2006.1
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes
02Pretreatment of the material to be coated
B08B 3/10 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
08CLEANING
BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
3Cleaning by methods involving the use or presence of liquid or steam
04Cleaning involving contact with liquid
10with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity, by vibration
C23C 16/34 2006.1
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes
22characterised by the deposition of inorganic material, other than metallic material
30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
34Nitrides
C23C 16/40 2006.1
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes
22characterised by the deposition of inorganic material, other than metallic material
30Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
40Oxides
CPC
B64F 5/40
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
FGROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
5Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
40Maintaining or repairing aircraft
C11D 11/0023
CCHEMISTRY; METALLURGY
11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
DDETERGENT COMPOSITIONS
11Special methods for preparing compositions containing mixtures of detergents
0005Special cleaning and washing methods
0011characterised by the objects to be cleaned
0023"Hard" surfaces
C11D 7/06
CCHEMISTRY; METALLURGY
11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
DDETERGENT COMPOSITIONS
7Compositions of detergents based essentially on non-surface-active compounds
02Inorganic compounds
04Water-soluble compounds
06Hydroxides
C11D 7/08
CCHEMISTRY; METALLURGY
11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
DDETERGENT COMPOSITIONS
7Compositions of detergents based essentially on non-surface-active compounds
02Inorganic compounds
04Water-soluble compounds
08Acids
C11D 7/3245
CCHEMISTRY; METALLURGY
11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
DDETERGENT COMPOSITIONS
7Compositions of detergents based essentially on non-surface-active compounds
22Organic compounds
32containing nitrogen
3245Aminoacids
C23C 16/0227
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
16Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
02Pretreatment of the material to be coated
0227by cleaning or etching
Applicants
  • APPLIED MATERIALS, INC. [US]/[US]
Inventors
  • MANDAL, Abhishek
  • DEEPAK, Nitin
  • GUPTA, Neha
  • GORADIA, Prerna Sonthalia
  • KADAM, Ankur
  • OHNO, Kenichi
  • BRITZ, David Alexander
  • SCUDDER, Lance A
Agents
  • VER STEEG, Steven H.
  • HAMMACK, Marcus W.
Priority Data
20204102836003.07.2020IN
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS FOR REFURBISHING AEROSPACE COMPONENTS
(FR) PROCÉDÉS DE REMISE À NEUF DE COMPOSANTS AÉROSPATIAUX
Abstract
(EN) 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.
(FR) Selon certains modes de réalisation, la présente invention concerne généralement de remise à neuf des composants aérospatiaux par enlèvement de la corrosion et dépôt de revêtements protecteurs. Dans un ou plusieurs modes de réalisation, un procédé de remise à neuf d'un composant aérospatial comprend l'exposition du composant aérospatial contenant de la corrosion à une solution de nettoyage aqueuse. Le composant aérospatial contient un superalliage de nickel, une couche d'aluminure disposée sur le superalliage de nickel, et une couche d'oxyde d'aluminium disposée sur la couche d'aluminure. Le procédé comprend l'élimination de la corrosion d'une partie de la couche d'oxyde d'aluminium avec la solution de nettoyage aqueuse pour révéler la couche d'oxyde d'aluminium, puis l'exposition de la couche d'oxyde d'aluminium à un post-rinçage, et la formation d'un revêtement protecteur sur la couche d'oxyde d'aluminium.
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