Interactive Resource icon  Yielding Across Grains

 
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Resource type: Interactive Resource
Description: This interactive animation shows how yielding across grains occurs under applied tensile stress σ. The resolved shear stress τ acts on dislocation source S1 in a favourably oriented grain 1. As σ approaches the tensile yield stress σy, dislocations will pile up at grain boundaries. The pile-up in grain 1 exerts a intensified shear stress on the dislocation source S2 in grain 2. Grain 2 subsequently deforms plastically - general yielding throughout the sample then follows.
Keywords: yield • hardening
Categories: Science approaches > Strengthening mechanisms
Materials > Metals & alloys > Aluminium & alloys
Created by: MATTER, The University of Liverpool
Andrew Green, The University of Liverpool
Contributions: Jürgen Hirsch, Hydro Aluminium Deutschland GmbH
Graeme Marshall, Alcan International Ltd
Paul Evans, Innoval Technology Ltd (formerly Alcan Intl. Ltd, Banbury)
Ricky Ricks, Innoval Technology Ltd (formerly Alcan Intl. Ltd, Banbury)
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: 16 September 2001
Date added: 21 December 2009
Package:
Resource ID: 2614