Using high-pressure torsion for the cold-consolidation of copper chips produced by machining
Using high-pressure torsion for the cold-consolidation of copper chips produced by machining
High-pressure torsion (HPT) was used to consolidate chips machined from coarse-grained copper and from copper processed by ECAP. The results are compared with discs prepared by HPT and with discs processed by a combination of equal-channel angular pressing (ECAP) and HPT. It is demonstrated that the consolidated discs have exceptionally fine microstructures and high hardness. The results suggest the possibility of a saturation in grain refinement which may be related to a release in heat during high-pressure straining.
consolidation, copper, equal-channel angular pressing, high-pressure torsion, ultrafine grains
123-126
Zhilyaev, A.P.
fe22cdc1-590d-4bbd-bd1a-6ca18e3ee971
Gimazov, A.A.
da1834b5-860f-4c44-ae4c-ac09d1fcf526
Raab, G.I.
fd5e45ca-8fc0-4c6c-afa1-095e78d0b387
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
15 July 2008
Zhilyaev, A.P.
fe22cdc1-590d-4bbd-bd1a-6ca18e3ee971
Gimazov, A.A.
da1834b5-860f-4c44-ae4c-ac09d1fcf526
Raab, G.I.
fd5e45ca-8fc0-4c6c-afa1-095e78d0b387
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhilyaev, A.P., Gimazov, A.A., Raab, G.I. and Langdon, T.G.
(2008)
Using high-pressure torsion for the cold-consolidation of copper chips produced by machining.
Materials Science and Engineering: A, 486 (1-2), .
(doi:10.1016/j.msea.2007.08.070).
Abstract
High-pressure torsion (HPT) was used to consolidate chips machined from coarse-grained copper and from copper processed by ECAP. The results are compared with discs prepared by HPT and with discs processed by a combination of equal-channel angular pressing (ECAP) and HPT. It is demonstrated that the consolidated discs have exceptionally fine microstructures and high hardness. The results suggest the possibility of a saturation in grain refinement which may be related to a release in heat during high-pressure straining.
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Published date: 15 July 2008
Keywords:
consolidation, copper, equal-channel angular pressing, high-pressure torsion, ultrafine grains
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 48988
URI: http://eprints.soton.ac.uk/id/eprint/48988
ISSN: 0921-5093
PURE UUID: f96a0d84-a7d1-4695-9164-c90027260ec3
Catalogue record
Date deposited: 26 Oct 2007
Last modified: 16 Mar 2024 03:28
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Contributors
Author:
A.P. Zhilyaev
Author:
A.A. Gimazov
Author:
G.I. Raab
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