Table of Contents
Textures and Microstructures
Volume 14 (1991)–18
http://dx.doi.org/10.1155/TSM.14-18.847

Effects of iron and Silicon on Recrystallization Textures of Drawn Aluminium

Department of Metallurgical Engineering, University of Osaka Prefecture, 4-804, Mozu-Umemachi, Sakai, Osaka 591, Japan

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

The recrystallization textures of cold drawn aluminium alloys were determined by means of the orientation distribution functions (ODFs). The changes in texture with annealing temperature were interpreted by examining the interrelation between recrystallization and precipitation. The drawing textures of all the specimens are mainly composed of the <111> fiber component. In the case of Al-Si, silicon exists in the solid solution at high and medium temperatures (623-723K), therefore, the <111> component is sharpened and the recrystallization textures are composed of the strong <111> component and the weak <100> one. On the other hand, precipitation of silicon participates in recovery and recrystallization at low temperatures (523-573K) so that the <100> component nearly equals to the <111> one in intensity. Al-Fe shows the strong <111> + weak <100> fiber texture in the all ranges of annealing temperatures, though the <111> component is stronger at a high temperature (723K), where precipitation occurs after recrystallization, than at low and medium temperatures (573-673K), where it does before recrystallization. For Al-Fe-Si, the recrystallization textures are almost the same as Al-Fe except for weakening in orientation density.