INFLUENCE OF THERMOMECHANICAL PROCESSING AT TEMPERATURES ABOVE -TRANSUS ON THE MICROSTRUCTURAL AND MECHANICAL CHARACTERISTICS OF THE Ti-6246 ALLOY

The microstructure evolution and tensile strength test of The Ti-6246 alloy were investigated in the present study. Ten samples have been modified by using different thermo-mechanical processes (heat-homogenization process, hot plastic deformation, and solution heat treatment) in the β-field range. The tensile test parameters were also investigated for all samples. The results revealed that the phase transformations and compositional changes induced by thermo-mechanical processes have a significant influence on the microstructural and mechanical characteristics. It was concluded that all samples present different crystallographic structure/lattice and morphologies. The mechanical properties have improved in the solution heat treatment in comparison with hot deformation processes.