Effect of thermomechanical processing and heat treatment on the microstructure evolution of the Ti-6246 alloy

Abstract

In the present study, the microstructures of five samples of the Ti-6246 alloy were investigated using SEM and OM devices. Four samples had been examined during different thermo-mechanical processing and heat treatment (hot plastic deformation and normalizing heat treatment) in α + β and β field domain respectively. The results demonstrate that the phase transformations and compositional modifications induced by thermo-mechanical processing and heat treatment have a dramatic influence on the microstructural characteristics. It was concluded that all samples present many morphologies textures and orientations. The microstructures features had improved in the normalizing heat process in comparison with the parent material and the hot deformation process.