An Investigation of the Development of Coarse Grains During β Annealing of Hot-Forged Ti-6Al-4V

Process variables contributing to the development of non-uniform, coarse grains during β annealing following subtransus conventional forging of the α/β titanium alloy Ti-6Al-4V were investigated using subscale laboratory experiments and simulations of the evolution of the β-phase crystallographic texture. Forging trials comprised the nominally plane-strain sidepressing of cylindrical preforms using a furnace (preheat) temperature of either 1172...