PROCESS FOR INCREASING THE OXIDATION AND CORROSION RESISTANCE OF A SUPERALLOY PART, AND SUPERALLOY PART OBTAINED BY THIS PROCESS

Le procédé pour améliorer la résistance à l'oxydation et à la corrosion d'une pièce en superalliage consiste : - à réaliser un substrat en superalliage ayant une teneur en soufre au moins inférieure à 0,8ppm en poids, - à déposer, sur le substrat en superalliage, un revêtement de protectio...

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Bibliographische Detailangaben
Hauptverfasser:	LEGER, JACQUES LOUIS, JASLIER, YANN, ALPERINE, SERGE ALEXANDRE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR CHEMICAL SURFACE TREATMENT CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION 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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	Le procédé pour améliorer la résistance à l'oxydation et à la corrosion d'une pièce en superalliage consiste : - à réaliser un substrat en superalliage ayant une teneur en soufre au moins inférieure à 0,8ppm en poids, - à déposer, sur le substrat en superalliage, un revêtement de protection anti-oxydation comportant une teneur en soufre au moins inférieure à 0,8ppm en poids. Optionnellement, pour une application à un revêtement de barrière thermique, le procédé comporte une étape supplémentaire consistant à déposer un revêtement de céramique à structure colonnaire sur le revêtement de protection anti-oxydation. The oxidation and corrosion resistance of a nickel, cobalt and/or iron base superalloy part is improved by applying an oxidation protection coating, both the coating and the superalloy having a sulfur content of ≤ 0.8 wt. ppm. An Independent claim is also included for a superalloy part produced by the above process.