NICKEL BASED ALLOY FOR REPAIRING SUBSTRATES

A repaired nickel-based superalloy substrate that has applied thereon a nickel-based polycrystalline repair alloy comprising 0.03-2.5 weight % hafnium, 0.003-0.32% boron, 0.02-0.16% yttrium and 0.007-0.35% zirconium. The present invention further provides a repaired single crystal alloy substrate th...

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Bibliographic Details
Main Authors GOSTIC, WILLIAM, J, PARMLEY, CHRISTOPHER, D, BIONDO, CHARLES, M, TANZOLA, JOHN, C
Format Patent
LanguageEnglish
French
German
Published 21.05.1997
Edition6
Subjects
ALLOYS
CHEMISTRY
CLADDING OR PLATING BY SOLDERING OR WELDING
COMBINED OPERATIONS
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
FERROUS OR NON-FERROUS ALLOYS
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
OTHER WORKING OF METAL
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
UNIVERSAL MACHINE TOOLS
WELDING
WORKING BY LASER BEAM
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Summary:A repaired nickel-based superalloy substrate that has applied thereon a nickel-based polycrystalline repair alloy comprising 0.03-2.5 weight % hafnium, 0.003-0.32% boron, 0.02-0.16% yttrium and 0.007-0.35% zirconium. The present invention further provides a repaired single crystal alloy substrate that has applied thereon a repair alloy wherein the repair alloy's composition is similar to or the same as the single crystal alloy composition except that the repair alloy additionally comprises at least one grain boundary strengthener element and at least one element that enhances oxidation resistance.
Bibliography:Application Number: EP19950925309