Table of Contents
Textures and Microstructures
Volume 31, Issue 1-2, Pages 1-19
http://dx.doi.org/10.1155/TSM.31.1

Texture and Hardness in Wire Drawn [001] Copper Single Crystals

1lnstitute for General Physics, Eötvös University, Múzeum Krt. 6-8, Budapest H-1088, Hungary
2Laboratoire de Physique et Mécanique des matériaux, Université de Metz, ISGMP, Ile du Saulcy, Metz cedex 01 57045, France
3Laboratoire d'Etude des Textures et Applications aux matériaux, Université de Metz, ISGMP, Ile du Saulcy, Metz cedex 01 57045, France

Received 10 February 1998

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The crystallographic texture and Vickers hardness which develop during wire-drawing of [001] oriented copper single crystals have been studied experimentally as well by simulations. The experiments revealed orientation changes producing cross-shaped patterns in the {200} pole figures and important variations in the Vickers hardness across the diameter. Metallographic investigations showed the presence of deformation bands perpendicular to the initial 100 directions. By adopting a model for the velocity field inside the die, simulations have been carried out by using a Taylor type rate sensitive crystal plasticity model, including microscopic hardening. The simulated pole figures show the features of the experimental ones and the predicted stress levels correlate well with the measured hardness data.