CORROSION AND ABRASION RESISTANT COATING

A gearbox 14 adapted for use with a gas turbine engine 10 and a method for making the same are disclosed herein. The gearbox 14 comprising a housing 22 made from a magnesium alloy, and an aluminum oxide coating 26 on the magnesium alloy housing 22. The aluminum oxide coating 26 may inhibit corrosion...

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Bibliographische Detailangaben
Hauptverfasser:	CASEY, GABRIELLE, WILEY, BRAD, SHMYREVA, TETYANA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ENGINE PLANTS IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SPRAYING OR ATOMISING IN GENERAL STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A gearbox 14 adapted for use with a gas turbine engine 10 and a method for making the same are disclosed herein. The gearbox 14 comprising a housing 22 made from a magnesium alloy, and an aluminum oxide coating 26 on the magnesium alloy housing 22. The aluminum oxide coating 26 may inhibit corrosion of the housing 22, and may have a nano-microcrystalline structure that defines an inner region 30 bonded directly to the housing 22 and an outer region 34 spaced apart from the housing 22.