Heat treatment of titanium and titanium alloys have Aerospace titanium castings

Heat treatment of titanium alloys are: (1) stress relief annealing: the aim is to eliminate or reduce the residual Aerospace titanium castings stress generated during processing. Prevent chemical erosion and reduce distortion in some corrosive environments. (2) complete annealing: the purpose is to obtain a good toughness, improved workability, and is conducive to further processing and to improve the dimensional stability titanium precision casting of the organization. (3) solution treatment and aging: The purpose is to increase its strength, α β titanium and titanium alloys can not be stable strengthening heat treatment, carried out only in the production of annealing. α + β titanium alloy The metastable β titanium alloy containing a small amount of gold can be prepared by α-phase solid solution treatment aerospace castings and aging the alloy is further strengthened.