Interactive Resource icon  Recrystallisation Experiment

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Description: Depending on composition and strain, different alloys recrystallise after different times and at different temperatures. The dislocations re-arrange themselves to form a recovered microstructure and new recrystallised grains form within the recovered structure. These recrystallised grains then grow through the migration of high angle grain boundaries consuming the deformed or recovered grains to give a new grain structure with a very low dislocation density. Further heat treatment results in grain growth and coarsening. This interactive animation is a virtual experiment, which goes through all stages of recrystallisation process. Four samples of two different cold-rolled aluminium alloys are first prepared, then heated to different temperatures, quenched with cold water and the resulting micrographs are examined.
Keywords: recrystallisation • heat treatment • recovery • cold rolling
Categories: Science approaches > Strengthening mechanisms > Recovery, recrystallisation & grain growth
Materials > Metals & alloys > Aluminium & alloys
Processes > Shaping > Deformation > Rolling
Created by: Havovy Cama, Innoval Technology Ltd (formerly Alcan Intl. Ltd, Banbury)
MATTER, The University of Liverpool
Contributions: Ricky Ricks, Innoval Technology Ltd (formerly Alcan Intl. Ltd, Banbury)
Richard Hamerton, Alcan International Ltd
John Humphreys, Manchester Materials Science Centre
Published by: European Aluminium Association, Brussels
License: This resource is released under the Creative Commons Attribution Non-Commercial No Derivatives license (2.0 UK: England & Wales).
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Date created: 02 May 2003
Date added: 21 December 2009
Resource ID: 2630