Étude de la texture et des mécanismes de recristallisation primaire d'une tôle mince de titane laminée puis recuite en phase alpha

Abstract

From the three-dimensional analysis of textures as well as the observation of structures by optical and transmission electron microscopy, it can be assumed that at relatively high temperatures (from 550 to 850°C) the recrystallization of titanium in the a phase is consistent with the mechanism of selective growth of deformation cells. However at lower temperatures (450°C), recrystallization in situ appears to be the likely mechanism. It can be shown that, for a small amount of rolling deformation, a high annealing temperature leads to a recrystallization texture similar to that obtained after a large amount of rolling deformation followed by a low annealing temperature.