Patent ID: 7377417

Claim:
A process for repairing at least one crack in a metal workpiece comprising the steps of: forming a braze paste containing a first nickel base alloy material containing boron and chromium and a second nickel base alloy material containing chromium and cobalt; applying said brazing paste to an area of said metal workpiece containing said at least one crack; subjecting said brazing paste and said workpiece to a brazing cycle by heating said brazing paste and said workpiece; and wherein said braze paste forming step comprises mixing a first nickel base alloy material having a composition consisting of from 14 wt % to 16 wt % chromium, from 2.4 wt % to 3.0 wt % boron, up to 0.15 wt % total other elements, and the remainder nickel and inevitable impurities, with said second nickel base alloy material.