Repaired nickel based superalloy

Details Repaired nickel based superalloy Repaired nickel based superalloy

1995-06-07

1998-07-21

Phipps, Margery

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

148512, 148527, 428637, B32B 1500

Patent

active

057833184

ABSTRACT:
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.

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