Using an Al-Cu binary alloy to compare processing by
multi-axial compression and high-pressure torsion
Using an Al-Cu binary alloy to compare processing by
multi-axial compression and high-pressure torsion
An Al-4% Cu alloy was selected as a model material in order to compare two different procedures for imposing severe plastic deformation: multi-axial compression (MAC) and high-pressure torsion (HPT). In MAC a compressive strain is applied to prismatic samples in a sequential order along three orthogonal directions and the process is repeated to large numbers of passes in order to attain high strains. In HPT a thin disk is held between anvils and subjected to a high applied pressure and concurrent torsional straining. The results show that HPT is the optimum procedure for producing a homogeneous ultrafine-grained material. Specifically, HPT is preferable because it produces materials having a larger degree of homogeneity and the equilibrium grain sizes are smaller and the Vickers microhardness values are higher than when processing by MAC.
al-cu alloy, high-pressure torsion, homogeneity, multi-axial compression, ultrafine grains
280-287
Xu, Xiaochang
612df0d9-b855-4394-929a-c90e414d414b
Zhang, Qi
1c9ab9c3-acf6-48c7-8b30-34baef0ca4b9
Hu, Nan
a4341908-c0b2-4821-a126-47a5007f7a88
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
20 December 2013
Xu, Xiaochang
612df0d9-b855-4394-929a-c90e414d414b
Zhang, Qi
1c9ab9c3-acf6-48c7-8b30-34baef0ca4b9
Hu, Nan
a4341908-c0b2-4821-a126-47a5007f7a88
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Xu, Xiaochang, Zhang, Qi, Hu, Nan, Huang, Yi and Langdon, Terence G.
(2013)
Using an Al-Cu binary alloy to compare processing by
multi-axial compression and high-pressure torsion.
Materials Science and Engineering: A, 588, .
(doi:10.1016/j.msea.2013.09.001).
Abstract
An Al-4% Cu alloy was selected as a model material in order to compare two different procedures for imposing severe plastic deformation: multi-axial compression (MAC) and high-pressure torsion (HPT). In MAC a compressive strain is applied to prismatic samples in a sequential order along three orthogonal directions and the process is repeated to large numbers of passes in order to attain high strains. In HPT a thin disk is held between anvils and subjected to a high applied pressure and concurrent torsional straining. The results show that HPT is the optimum procedure for producing a homogeneous ultrafine-grained material. Specifically, HPT is preferable because it produces materials having a larger degree of homogeneity and the equilibrium grain sizes are smaller and the Vickers microhardness values are higher than when processing by MAC.
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Accepted/In Press date: 2 September 2013
e-pub ahead of print date: 7 September 2013
Published date: 20 December 2013
Keywords:
al-cu alloy, high-pressure torsion, homogeneity, multi-axial compression, ultrafine grains
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 356274
URI: http://eprints.soton.ac.uk/id/eprint/356274
ISSN: 0921-5093
PURE UUID: 8f4f9e97-08a5-4249-99a7-ba0e78f7c31d
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Date deposited: 17 Sep 2013 12:09
Last modified: 15 Mar 2024 03:39
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Contributors
Author:
Xiaochang Xu
Author:
Qi Zhang
Author:
Nan Hu
Author:
Yi Huang
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