Deformation behavior of pure titanium at a wide range of strain rates

Abstract

Plastic deformation behavior of pure titanium has been investigated using a tensile test at a various range of strain rates. Flow stress curves reveal that the work hardening behavior depends on the strain rates. The higher strain rates, the more work hardening. Dislocation cell structure has been developed after the deformation at a low strain rate. At a high strain rate, in addition to that, microstructure of twinning is well evolved. Much occurrence of twinning at the high strain rate leads the pronounced work hardening. © 2010 IOP Publishing Ltd.