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DC Field | Value | Language |
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dc.contributor.author | Huang, Y | - |
dc.contributor.author | Jiang, J | - |
dc.date.accessioned | 2021-11-13T15:03:24Z | - |
dc.date.available | 2021-11-13 | - |
dc.date.available | 2021-11-13T15:03:24Z | - |
dc.date.issued | 2021-11-13 | - |
dc.identifier | 1822 | - |
dc.identifier.citation | Huang, Y. and Jiang, J. (2021) 'Microstructure and Texture Evolution during Severe Plastic Deformation at Cryogenic Temperatures in an Al-0.1Mg Alloy', Metals, 11 (11), 1822, pp. 1 - 14 (14). doi: 10.3390/met11111822. | en_US |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/23497 | - |
dc.description.abstract | Copyright: © 2021 by the authors. The deformation structures formed in an Al-0.1Mg single-phase aluminium alloy have been studied during plane strain compression (PSC) down to liquid nitrogen temperature, following prior equal channel angular extrusion (ECAE) to a strain of ten. Under constant deformation conditions a steady state was approached irrespective of the temperature, where the rate of grain refinement stagnated and a minimum grain size was reached which could not be further reduced. A 98% reduction at −200 °C only transformed the ECAE processed submicron grain structure into a microstructure with thin ribbon grains, where a nanoscale high angle boundary (HAB) spacing was only approached in the sheet normal direction. It is shown that the minimum grain size achievable in severe deformation processing is controlled by a balance between the rate of compression of the HAB structure and dynamic recovery. The required boundary migration rate to maintain a constant boundary spacing is found far higher than can be justified from conventional diffusion-controlled grain growth and at low temperatures, a constant boundary spacing can only be maintained by invoking an athermal mechanism and is considered to be dominated by the operation of grain boundary dislocations. | en_US |
dc.description.sponsorship | EPSRC Future LiME Hub (EP/N007638/1). | en_US |
dc.format.extent | 1 - 14 (14) | - |
dc.format.medium | Electronic | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | MDPI AG | en_US |
dc.rights | Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | severe plastic deformation (SPD) | en_US |
dc.subject | ultrafine grain structure | en_US |
dc.subject | cryogenic temperature | en_US |
dc.subject | dynamic restoration | en_US |
dc.subject | grain boundary dislocation | en_US |
dc.title | Microstructure and Texture Evolution during Severe Plastic Deformation at Cryogenic Temperatures in an Al-0.1Mg Alloy | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.3390/met11111822 | - |
dc.relation.isPartOf | Metals | - |
pubs.issue | 11 | - |
pubs.publication-status | Published online | - |
pubs.volume | 11 | - |
dc.identifier.eissn | 2075-4701 | - |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) |
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