BOND COATS FOR TURBINE COMPONENTS AND METHOD OF APPLYING THE SAME

A substrate (12) such as a superalloy turbine component is coated with a basecoat (14) of the type MCrAIY which also contains boron, where the amount of boron in the basecoat is in a concentration gradient where more boron is present near the top (16) than the bottom (20) of the basecoat (14) and bo...

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Bibliographische Detailangaben
Hauptverfasser:	SABOL, STEPHEN, M, GOEDJEN, JOHN, G
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS ALLOYS 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 COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS 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 STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	A substrate (12) such as a superalloy turbine component is coated with a basecoat (14) of the type MCrAIY which also contains boron, where the amount of boron in the basecoat is in a concentration gradient where more boron is present near the top (16) than the bottom (20) of the basecoat (14) and boron is present in an average amount of over 0.50 wt.% throughout the basecoat cross-section (14) of the composite (10). Un substrat (12), tel qu'un composant de turbine en superalliage est enduit d'une couche de base (14) du type MCrAIY qui contient également du bore, la quantité de bore dans la couche de base correspondant à un gradient de concentration selon lequel le bore est présent en quantité plus importante à proximité du sommet (16) que dans la partie inférieure (20) de la couche de base (14) et le bore est présent en quantité moyenne supérieure à 0,50 % en poids sur la section (14) de la couche de base, du composite (10).