Patent ID: 7244320

Claim:
A method for minimizing post-weld residual stresses in a weld repaired component, comprising: solution heat treating the weld repaired component by heating the weld repaired component to about 2000° F.±25° F., holding the weld repaired component at about 2000° F.±25° F. for about one hour; and cooling the weld repaired component to below about 700° F. at a rate equivalent to cooling in air; and precipitation heat treating the weld repaired component by heating the weld repaired component to about 1325° F.±25° F., holding the weld repaired component at about 1325° F.±25° F. for about 8 hours, cooling the weld repaired component to about 1150° F.±25° F. at a maximum rate of about 100° F./hour, holding the weld repaired component at about 1150° F.±25° F. for about 8 hours, and cooling the weld repaired component, wherein the weld repaired component is made of an iron-nickel-cobalt-based superalloy comprising about 27.00-31.00 wt. % cobalt 23.00-26.00 wt .% nickel, 5.00-6.00 wt. % chromium, 4.40-5.30 wt. % columbium/niobium, 0.65-1.10 wt. % titanium, 0.30-0.70 wt. % aluminum 0.20-0.40 wt. % silicon, up to 0.50 wt. % manganese, up to 0.50 wt. % copper, up to 0.05 wt. % carbon, up to 0.015 wt. % phosphorus, up to 0.015 wt. % sulfur, up to 0.010 wt. % boron, with the balance comprising iron, and wherein dimensions of the weld repaired component are maintained during solution heat treating and precipitation heat treating via a furnace tool.