Plastic flow properties and microstructural evolution in an ultrafine-grained Al-Mg-Si alloy at elevated temperatures Kashyap, B. P., Hodgson, P. D., Estrin, Y., Timokhina, I., Barnett, M. R. and Sabirov, I. 2009, Plastic flow properties and microstructural evolution in an ultrafine-grained Al-Mg-Si alloy at elevated temperatures, Metallurgical and materials transactions A – physical metallurgy and materials science, vol. 40, no. 13, pp. 3294-3303, doi: 10.1007/s11661-009-0036-6. Attached Files Name Description MIMEType Size Downloads Title Plastic flow properties and microstructural evolution in an ultrafine-grained Al-Mg-Si alloy at elevated temperatures Author(s) Kashyap, B. P. Hodgson, P. D. orcid.org/0000-0002-6985-1319 Estrin, Y. Timokhina, I. orcid.org/0000-0003-1989-0835 Barnett, M. R. orcid.org/0000-0001-8287-9044 Sabirov, I. Journal name Metallurgical and materials transactions A – physical metallurgy and materials science Volume number 40 Issue number 13 Start page 3294 End page 3303 Total pages 10 Publisher Springer Place of publication New York, N.Y. Publication date 2009-12 ISSN 1073-5623 1543-1940 Keyword(s) ultrafine-grained alloy microstructural evolution heat treatment Summary An AA6082 alloy was subjected to eight passes of equal channel angular pressing at 100 °C, resulting in an ultrafine grain size of 0.2 to 0.4 µm. The tensile deformation behavior of the material was studied over the temperature range of 100 °C to 350 °C and strain rate range of 10¯4 to 10¯1 s¯1. The evolution of microstructure under tensile deformation was investigated by analyzing both the deformation relief on the specimen surface and the dislocation structure. While extensive microshear banding was found at the lower temperatures of 100 °C to 150 °C, deformation at higher temperatures was characterized by cooperative grain boundary sliding and the development of a bimodal microstructure. Dislocation glide was identified as the main deformation mechanism within coarse grains, whereas no dislocation activity was apparent in the ultrafine grains. Language eng DOI 10.1007/s11661-009-0036-6 Field of Research 091207 Metals and Alloy Materials Socio Economic Objective 861101 Basic Aluminium Products HERDC Research category C1 Refereed article in a scholarly journal ERA Research output type C Journal article HERDC collection year 2009 Copyright notice ©2009, Springer Persistent URL http://hdl.handle.net/10536/DRO/DU:30026210 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 Mon, 29 Mar 2010, 17:34:01 EST Mon, 29 Mar 2010, 17:38:39 EST Mon, 29 Mar 2010, 18:49:02 EST Tue, 30 Mar 2010, 07:46:04 EST Fri, 16 Apr 2010, 13:40:23 EST Fri, 16 Apr 2010, 13:41:48 EST Mon, 17 May 2010, 14:37:56 EST Wed, 15 Feb 2012, 11:52:13 EST Mon, 30 Sep 2013, 12:24:54 EST Mon, 16 Jun 2014, 15:11:23 EST Fri, 17 Oct 2014, 10:13:51 EST Filtered Full Citation counts:   Cited 25 times in TR Web of Science Cited 26 times in Scopus Search Google Scholar Access Statistics: 1170 Abstract Views, 5 File Downloads  -  Detailed Statistics Created: Mon, 29 Mar 2010, 17:33:54 EST by Sandra Dunoon