Microstructural evolution in the processing of bulk samples using high-pressure torsion
Microstructural evolution in the processing of bulk samples using high-pressure torsion
Although high-pressure torsion (HPT) is now a well-established technique for imposing severe plastic deformation on metallic materials, the technique is generally restricted to use with thin disk samples. This paper describes experiments which were conducted to evaluate the potential for making use of HPT with bulk samples in the form of small cylinders. The experiments were performed using an Al-Mg-Sc alloy and the samples were strained under a pressure of 1 GPa at room temperature. The results demonstrate excellent microstructural refinement in the vicinity of the central zone around the periphery of the cylinders.
aluminium alloy, grain refinement, high pressure torsion (HPT), severe plastic deformation, ultra-fine grains
80-85
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2007
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Horita, Z. and Langdon, T.G.
(2007)
Microstructural evolution in the processing of bulk samples using high-pressure torsion.
Materials Science Forum, 539-543, .
Abstract
Although high-pressure torsion (HPT) is now a well-established technique for imposing severe plastic deformation on metallic materials, the technique is generally restricted to use with thin disk samples. This paper describes experiments which were conducted to evaluate the potential for making use of HPT with bulk samples in the form of small cylinders. The experiments were performed using an Al-Mg-Sc alloy and the samples were strained under a pressure of 1 GPa at room temperature. The results demonstrate excellent microstructural refinement in the vicinity of the central zone around the periphery of the cylinders.
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Published date: 2007
Keywords:
aluminium alloy, grain refinement, high pressure torsion (HPT), severe plastic deformation, ultra-fine grains
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 50102
URI: http://eprints.soton.ac.uk/id/eprint/50102
ISSN: 1662-9752
PURE UUID: 12abf2f1-0ac1-40ce-b53b-9da1305101bc
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Date deposited: 24 Jan 2008
Last modified: 09 Jan 2022 03:10
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Author:
Z. Horita
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