THE THERMOMECHANICAL PROCESSING OF ALPHA BETA TITANIUM-ALLOYS/

In this article, the thermomechanical processing of ingot-metallurgy a lpha/beta titanium alloys is summarized, with special emphasis on micr ostructure evolution and workability considerations. Primary hot worki ng dealing with the conversion of ingot structures to fine-equiaxed wr ought structures is addressed. In this regard, the breakdown of lamell ar microstructures, the occurrence of cavitation/wedge cracking, and t he development of crystallographic texture are described. Secondary pr ocesses such as sheet rolling, superplastic forming, and closed-die fo rging are also reviewed.