Three-dimensional representations of hardness distributions after processing by high-pressure torsion
Three-dimensional representations of hardness distributions after processing by high-pressure torsion
The Vickers microhardness was recorded on the polished surfaces of disks of pure aluminum and an Al-6061 alloy after processing by high-pressure torsion. The results are shown in three-dimensional representations that reveal clearly the gradual evolution towards a homogeneous structure. This evolution is reasonably rapid in pure Al but it is slower in the alloy due to the lower rate of recovery. The results show evolution is assisted by increasing the numbers of turns and/or the imposed pressure. The results reveal significant differences between pure Al and the Al-6061 alloy which are consistent with earlier results obtained during processing by equal-channel angular pressing.
71-74
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2009
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Xu, Cheng and Langdon, Terence G.
(2009)
Three-dimensional representations of hardness distributions after processing by high-pressure torsion.
Materials Science and Engineering: A, 503 (1-2), .
(doi:10.1016/j.msea.2008.04.083).
Abstract
The Vickers microhardness was recorded on the polished surfaces of disks of pure aluminum and an Al-6061 alloy after processing by high-pressure torsion. The results are shown in three-dimensional representations that reveal clearly the gradual evolution towards a homogeneous structure. This evolution is reasonably rapid in pure Al but it is slower in the alloy due to the lower rate of recovery. The results show evolution is assisted by increasing the numbers of turns and/or the imposed pressure. The results reveal significant differences between pure Al and the Al-6061 alloy which are consistent with earlier results obtained during processing by equal-channel angular pressing.
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Published date: 2009
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 67622
URI: http://eprints.soton.ac.uk/id/eprint/67622
ISSN: 0921-5093
PURE UUID: 064f233c-c0e0-451d-9336-3c31d3ebf9c5
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Date deposited: 02 Sep 2009
Last modified: 14 Mar 2024 02:47
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Author:
Cheng Xu
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