Table of Contents
Textures and Microstructures
Volume 14–18
http://dx.doi.org/10.1155/TSM.14-18.871

Texture Evolution During Processing of a 3004 Aluminium Alloy

1Materials Department, Ecole des Mines de Saint-Etienne 158 cours Fauriel, Saint-Etienne 42023, France
2Centre de Recherches de Voreppe S.A., Pechiney, BP 27, 38340 Voreppe, France

Copyright © 1991 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

Macroscopic texture changes were measured on cold rolled and recrystallized samples of a 3004 alloy using X-ray pole figures converted into ODFs by means of the standard spherical harmonics method. Local textures were also estimated using electron diffraction techniques: TEM, SACP and EBSP. The initial recrystallized starting material with a relatively strong cube texture was rolled to strains of 0.6 and 3, reducing the cube component and increasing the β-fibre rolling texture components. On annealing the subsequent recrystallization texture behaviour depends upon the prior strain and the heating rate. After relatively low strains, particle stimulated nucleation occurred giving rise to an almost random texture. After high rolling strains nucleation appears to occur on both particles and in transition bands; the latter favour the creation of new cube grains. Finally, low heating rates which allow extensive recovery before recrystallization have been shown to decrease significantly the cube texture component.