J. Phys. IV France 11 (2001) Pr4-91-Pr4-98
Effect of cold rolling on the transition texture of commercially pure titaniumN. Gey1, M. Humbert1 and A.K. Singh2
1 LETAM, UMR 7078 du CNRS, Université de Metz, Ile du Saulcy, 57045 Metz cedex, France
2 DMRL, P.O. Kanchanbagh, Hyderabad 500058, India
The texture modifications induced by an α->β->α heat treatment of two alpha titanium sheets, cold rolled to different degrees are studied. The α textures inherited after annealing in the β field sharpen with the amount of cold rolling. After 90% deformation by cold rolling, this texture is mainly characterized by the (10.3)[1-2.0] component. The intermediate high temperature β textures have been evaluated by restitution methods developed in our laboratory and the transformation mechanisms during heating and cooling investigated. After 90% deformation by cold rolling, the inherited α texture cannot be simply deduced from the initial texture by a sequence of phase transformations occurring with strict orientation relation between lattices. The influence of the deformation imposed before heating on the final texture is demonstrated.
© EDP Sciences 2001