J. Phys. IV France 120 (2004) 185-190
DOI: 10.1051/jp4:2004120021

Thermal stresses in hexagonal materials -heat treatment influence on their mechanical behaviour

D. Gloaguen¹, S. Freour¹, M. François², R. Guillen¹ and J. Royer<sup>1

1</sup>  GeM, Institut de Recherche en Génie Civil et Mécanique, Université de Nantes, École Centrale de Nantes, UMR CNRS 6183, Boulevard de l'Université, BP. 406, 44602 Saint-Nazaire
²  Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée (LASMIS), Université de Technologie de Troyes, 11 rue Marie Curie, BP. 2060, 10010 Troyes, France

gloaguen@lamm.univ-nantes.fr

Abstract
Internal stresses due to anisotropic thermal and plastic properties were investigated in rolled zirconium and titanium. The thermal stresses induced by a cooling process were predicted using a self-consistent model and compared with experimental results obtained by X-ray diffraction. The study of the elastoplastic response during uniaxial loading was performed along the rolling and the transverse direction of the sheet, considering the influence of the texture and the thermal stresses on the mechanical behaviour. An approach in order to determine the thermal behaviour of phases embedded in two-phase materials is also presented.

© EDP Sciences 2004