Activated diffusion brazing alloys and repair process

Details Activated diffusion brazing alloys and repair process Activated diffusion brazing alloys and repair process

2006-01-18

2010-06-08

Wyszomiersi, George (Department: 1793)

Metal treatment

Stock

Nickel base

C420S445000, C228S119000

Reexamination Certificate

active

07731809

ABSTRACT:
The present invention provides a low-melt nickel-based alloy powder applied in an activated diffusion brazing repair on gas turbine components. In one embodiment, and by way of example only, the low-melt alloy powder comprises between about 6.7% and about 9.2% by weight Cr, between about 9.7% and about 10.3% by weight Co, between about 3.7% and about 4.7% by weight W, between about 3.3% and about 6.3% by weight Ta, between about 3.6% and about 5.2% by weight Al, between about 1.3% and about 4.0% by weight Hf, between about 0.02% and about 0.06% by weight C, between about 1.0% and about 3.2% by weight B, and Ni. Optionally, the low-melt alloy powder may include between about 1.4% and about 3.2% by weight Re.

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