Rev.Adv.Mater.Sci. (RAMS)
No 1, Vol. 31, 2012, pages 85-89

TEXTURE ANALYSIS OF ω - PHASE Ti SUBJECTED TO
HIGH PRESSURE TORSION

Vil Sitdikov and Igor Alexandrov

Abstract

This paper presents the research results of crystallographic texture and deformation mechanisms, which are characteristic of the ω-phase of Ti, subjected to high pressure torsion under pressure of 6 GPa at temperature 298K. The research has been carried out on the diskshaped samples with radius 20 mm and thickness 1.5 mm in an initial state (the as-received condition) and in states after 0.1, 0.5, 1, and 5 rotations under the high pressure torsion. The methods of X-ray analysis and computer modeling have been used here. As a result, the evolution mechanisms of preferable orientations, the activity of slip and twinning systems in ω-phase according to the degree of severe plastic deformation have been determined.

full paper (pdf, 2624 Kb)