The heat treatment process of titanium alloy can be summarized as follows:
(1) Stress relief annealing: the purpose is to eliminate or reduce the residual stress generated during processing. Prevent chemical attack and reduce deformation in some corrosive environments.
(2) Complete annealing: the purpose is to obtain good toughness, improve processing performance, facilitate reprocessing and improve the stability of size and structure.
(3) Solution treatment and aging: the purpose is to improve its strength, α Titanium alloys and stabilized β Titanium alloy can not be strengthened and heat treated, but only annealed in production. α+β Titanium alloy and containing a small amount α Metastable phase β Titanium alloys can be further strengthened by solution treatment and aging.