Patent ID: 7789288

Claim:
A process of repairing a component formed of a nickel-base alloy, the process comprising: applying at least a first braze paste to a void in the component to form a braze paste patch comprising powders of first and second alloys and an organic binder, wherein the first alloy has a higher melting temperature than the second alloy, the powders of the first and second alloys are present in the braze paste patch at a weight ratio of about 30:70 to about 70:30 weight percent, the first alloy is either a nickel-base alloy consisting of, by weight, 15.0 to 17.0% molybdenum, 14.5 to 16.5% chromium, 4.0 to 7.0% iron, 3.0 to 4.5% tungsten, up to 2.5% cobalt, the balance nickel and incidental impurities, or a gamma prime-strengthened nickel-base alloy consisting of, by weight, 9 to 11% cobalt, 7 to 9% chromium, 9 to 11% tungsten, 2.5 to 3.5% tantalum, 5 to 6% aluminum, 0.5 to 1.5% titanium 0.6 to 0.8% molybdenum, 1.3 to 1.7% hafnium, 0.03 to 0.08% zirconium, 0.01 to 0.02% boron, 0.13 to 0.17% carbon, the balance nickel and incidental impurities, and the second alloy is a nickel alloy consisting of, by weight, 19 to 21% chromium, 2.5 to 3.5% tantalum, 2.5 to 3.5% boron, 0.003 to 0.005% yttrium, and the balance nickel and incidental impurities; and then heating the braze paste patch to burn off the binder and melt at least the powder of the second alloy to form a brazement within the void that contains particles of the first alloy dispersed in a matrix formed by the second alloy.