Interactive Resource icon  Formation of Sub-grains and Polygonisation

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Description: In a heavily deformed metal, the dislocation configurations are not simple and so the boundary structures formed during recovery are correspondingly more complex. The dislocations will arrange themselves into complex networks of different Burgers vectors and different types (i.e. edge, screw or mixed). This interactive animation presents five stages of sub-grain formation and polygonisation.
Keywords: sub-grains • polygonisation • Burgers vectors • deformation • dislocations • grain boundaries
Categories: Science approaches > Strengthening mechanisms > Recovery, recrystallisation & grain growth
Materials > Metals & alloys > Aluminium & alloys
Created by: MATTER, The University of Liverpool
Havovy Cama, Innoval Technology Ltd (formerly Alcan Intl. Ltd, Banbury)
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: 07 May 2003
Date added: 21 December 2009
Resource ID: 2626