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Journal of Materials Science

, Volume 43, Issue 13, pp 4652–4657 | Cite as

Effect of homogenization on recrystallization in a twin-roll cast Al–Fe–Si alloy

  • Yücel BirolEmail author
Article

Abstract

The effect of homogenization treatment on the recrystallization process in a twin-roll cast AlFeSi alloy was investigated by means of calorimetry, microstructural analysis, electrical conductivity, and hardness measurements and cupping tests. The response to annealing of cold-rolled AlFeSi sheet processed with a homogenization treatment at the cast gauge is a typical two-stage, recovery and recrystallization process, while that processed without homogenization softens without recovery. The rather limited precipitation capacity in the former allows recrystallization to occur largely discontinously, favoring the annealing texture. The nucleation rate and the volume fraction of the discontinously recrystallized grains are largely reduced in the sheet processed without homogenization, owing to extensive dynamic precipitation. This reduces the strength of the annealing texture components and gives a more or less random crystallographic texture after annealing. With a relatively finer-grain structure and a nearly random crystallographic texture, AlFeSi sheet processed to soft temper at 1 mm without a homogenization treatment is an attractive foil stock material.

Keywords

Homogenization Treatment Sheet Sample Cast Strip AlFeSi Annealing Texture 

Notes

Acknowledgement

It is a pleasure to thank F. Alageyik for his help in the experimental part of this work.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Materials InstituteMarmara Research Center, TUBITAKKocaeliTurkey

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