Patent ID: 7481898

Claim:
A method for fabricating a forged titanium-alloy article, comprising the steps of providing a workpiece made of an alpha-beta titanium alloy having a nominal composition in weight percent of 6 percent aluminum, 4 percent vanadium, 0.2 percent oxygen, balance titanium and impurities, wherein the titanium alloy has a beta-transus temperature; thereafter forging the workpiece to make a forged gas turbine engine component, wherein the forged gas turbine engine component has a thick portion thereof with a section thickness greater than 2¼ inches; thereafter rough machining the forged gas turbine engine component; thereafter heat treating the machined forged gas turbine engine component by the steps consisting essentially of solution heat treating the machined forged gas turbine engine component at a temperature of from about 50° F. to about 75° F. below the beta-transus temperature, thereafter water quenching the gas turbine engine component to room temperature, and thereafter aging the gas turbine engine component at a temperature of from about 900° F. to about 1000° F.; and thereafter final machining the forged gas turbine engine component.