Microstructure evolution of pure titanium during hydrostatic extrusion

Abstract Regarding severely deformed materials of potentially high applicability in various industry branches, their microstructure evolution during processing is vast significance as it enables to control or adjust the most essential properties, including mechanical strength corrosion resistance. Within present study, development commercially pure titanium (grade 2) multi-stage process hydrostatic extrusion has been studied with use well-established techniques, involving electron backscatter diffraction well transmission microscopy. Microstructural deformation-induced defects, grain boundaries, dislocations, and twins, have meticulously analyzed. In addition, a special emphasis placed on size, boundary character misorientation gradients inside grains. The main aim was highlight microstructural alterations triggered by hydroextrusion single out possible sources. crystallographic texture also studied. It concluded that hydrostatically extruded an exceptionally inhomogeneous material terms its evidenced discrepancies size shape, great deal dislocation-type features observed at every stage magnitude deformation energy stored. Twinning, accompanied subdivision phenomenon, governing low strains; whereas, continuous dynamic recrystallization came fore higher strains. Selected properties resulting from are presented discussed.