Tensile deformation of a ultrafine-grained aluminium alloy: micro shear banding and grain boundary sliding Sabirov, I., Estrin, Y., Barnett, M., Timokhina, I. and Hodgson, P. 2008, Tensile deformation of a ultrafine-grained aluminium alloy: micro shear banding and grain boundary sliding, Acta Materialia, vol. 56, no. 10, pp. 2223-2230, doi: 10.1016/j.actamat.2008.01.020. Attached Files Name Description MIMEType Size Downloads Title Tensile deformation of a ultrafine-grained aluminium alloy: micro shear banding and grain boundary sliding Author(s) Sabirov, I. Estrin, Y. Barnett, M. orcid.org/0000-0001-8287-9044 Timokhina, I. orcid.org/0000-0003-1989-0835 Hodgson, P. orcid.org/0000-0002-6985-1319 Journal name Acta Materialia Volume number 56 Issue number 10 Start page 2223 End page 2230 Total pages 8 Publisher Pergamon Place of publication Oxford, England Publication date 2008-06 ISSN 1359-6454 1873-2453 Keyword(s) aluminium alloy equal channel angular pressing uniform elongation shear bands grain boundary sliding Summary This work investigates the relationship between the strain rate and the ductility and the underlying deformation mechanisms in an ultrafine-grained Al6082 alloy. At room temperature the uniform elongation of the material exhibits a marked increase with decreasing strain rate. This effect is related to the activation of micro shear banding, which is controlled by grain boundary sliding. The contribution of these mechanisms to uniform elongation is estimated. It is proposed that the grain boundary sliding suppresses the transformation of micro shear bands into macro shear bands. The activity of other deformation mechanisms during plastic deformation of the ultrafine-grained material is also discussed. Language eng DOI 10.1016/j.actamat.2008.01.020 Field of Research 091207 Metals and Alloy Materials Socio Economic Objective 970109 Expanding Knowledge in Engineering HERDC Research category C1 Refereed article in a scholarly journal HERDC collection year 2008 Copyright notice ©2008, Elsevier Persistent URL http://hdl.handle.net/10536/DRO/DU:30017600 Document type: Journal Article Collections: Centre for Material and Fibre Innovation GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 14 Aug 2009, 13:55:06 EST Mon, 09 Nov 2009, 14:44:20 EST Mon, 09 Nov 2009, 14:47:43 EST Mon, 30 Sep 2013, 12:03:08 EST Mon, 30 Sep 2013, 12:04:16 EST Mon, 16 Jun 2014, 12:01:38 EST Fri, 17 Oct 2014, 09:38:38 EST Filtered Full Citation counts:   Cited 98 times in TR Web of Science Cited 105 times in Scopus Search Google Scholar Access Statistics: 1162 Abstract Views, 2 File Downloads  -  Detailed Statistics Created: Fri, 14 Aug 2009, 13:55:06 EST