MULTI-LAYER PROTECTIVE COATING ENABLING NICKEL DIFFUSION

A component (10, 200, 300) is provided including a substrate (12, 202, 302); a first layer (16, 216, 316) disposed on the substrate (10, 202, 302) having a chromium-rich layer or an aluminum-rich layer; a second layer (18, 218, 318) disposed over the first layer (16, 216, 316) having the other of th...

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Bibliographische Detailangaben
Hauptverfasser:	RAJAGOPALAN, Sudhir, PATEL, Kirtan, SHARMA, Atin, DRAA, Phillip
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	A component (10, 200, 300) is provided including a substrate (12, 202, 302); a first layer (16, 216, 316) disposed on the substrate (10, 202, 302) having a chromium-rich layer or an aluminum-rich layer; a second layer (18, 218, 318) disposed over the first layer (16, 216, 316) having the other of the chromium-rich layer and the aluminum-rich layer; and a nickel vehicle (20, 220, 320) associated with the second layer (18, 218, 318) to allow diffusion of nickel to the second layer (18, 218, 318). La présente invention concerne un composant (10, 200, 300) comprenant un substrat (12, 202, 302) ; une première couche (16, 216, 316) disposée sur le substrat (10, 202, 302) comportant une couche riche en chrome ou une couche riche en aluminium ; une seconde couche (18, 218, 318) disposée sur la première couche (16, 216, 316) comportant l'autre couche parmi lesdites couche riche en chrome et couche riche en aluminium ; et un vecteur de nickel (20, 220, 320) associé à la seconde couche (18, 218, 318) pour permettre la diffusion du nickel vers la seconde couche (18, 218, 318).