PROCESS FOR REPAIRING A COMPONENT BY COATING

The invention relates to a method for repairing a component such as a turbine blade. At the end of its operating time, said component has, for example, a depletion of aluminium in a region (12) near the surface, the invention providing the application of a repair layer (19) containing particles (18)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KRUEGER, URSUS, KLINGEMANN, JENS, STIER, OLIVER, REICHE, RALPH, KOERTVELYESSY, DANIEL, LUETHEN, VOLKMAR, JENSEN, JENS DAHL
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 COMBINED OPERATIONS DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	The invention relates to a method for repairing a component such as a turbine blade. At the end of its operating time, said component has, for example, a depletion of aluminium in a region (12) near the surface, the invention providing the application of a repair layer (19) containing particles (18) with an increased proportion of aluminium. A subsequent heat treatment can achieve the effect of equalizing the concentration of aluminium between the repair layer (19) and the region (12) near the surface, and so the aluminium content required for new components is achieved again. The component consequently has advantageous properties that are almost equivalent to those of a new component.