Table of Contents
Textures and Microstructures
Volume 35 (2002), Issue 2, Pages 55-70
http://dx.doi.org/10.1080/0730330021000000209

Recrystallization in a Hot Deformed Al-Mg-Si Alloy: The Effect of Fine Precipitates

1Centre SMS, Ecole des Mines de Saint Etienne, 158 Cours Fauriel, Saint Etienne Cedex 2 42023, France
2Laboratoire de Glaciologie et Géophysique de l'Environnement, CNRS, B.P. 96, St. Martin d'Hères Cedex 38402, France
3Science & Computers Consultants, Parc Giron, 8 rue de la Richelandière, St. Etienne 42100, France

Received 15 November 2001

Copyright © 2002 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 recrystallization of an Al-Mg-Si alloy deformed by plane strain compression at 400°C and 1 s-1 has been studied. Fine particles are found to have a significant influence on the development of recrystallization textures. Annealing at 400°C, in the presence of Al-Fe-Si particles located on boundaries, results in a weak recrystallization texture. There is a clear indication that grain nucleation is associated with abnormal subgrain growth. The occurrence of this recovery process is analyzed by taking into account the particle pinning pressure and the orientation dependence of boundary energy and mobility. The cube recrystallization texture observed after annealing at 510°C is discussed in terms of the stability of Mg2Si and Al-Fe-Si precipitates.