Microstructure Characteristic and Texture Evolution of TB18 Titanium Alloy during Hot Compression in the ? Phase Zone

In the present study, microstructure characteristic and texture evolution of TB18 titanium alloy were studied by isothermal hot compression under different strain with rate 0.001 s?1 0.1 in ? phase zone. Electron Back-Scattered Diffraction (EBSD) XRD used to characterize macrotexture. Microstructure demonstrated that coarse grains flatten elongated direction as increased. The dynamic recrystallization mechanism is continuous (CDRX) at lower rate, while discontinuous (DDRX) higher rate. deformation strongly dependent on dislocation density, geometrically necessary dislocations density increased limited faction has little effect evolution, ascribed induced boundary migration activity slip system. At {110}?111? system {123}?111? enhanced ?110? weakened ?111? texture; modified intensity enhances texture.