A method of working titanium alloys

A method of forming an alpha-beta titanium alloy article by forming a final forged article at a temperature above its beta-transus, cooling the forged article, solution heat treating the cooled article at a temperature below its beta-transus, controlled cooling of the solution heat treated, and then alpha phase precipitation treating the post-solution cooled article to obtain a final article having an average elongation value of at least 3%. The alloy is preferably Ti-6Al-2Sn-4Zr-6Mo and forging is performed at a temperature in the range 952-996 {C, solution heat treatment is performed at a temperature in the range 92-125 {C below its beta-transus for 4 hours, controlled cooling is at a rate of 28-111 {C/minute and precipitation treating is performed at a temperature of 593-732 {C for 8 hours.