Evolution of microstructural homogeneity in copper processed by high-pressure torsion
Evolution of microstructural homogeneity in copper processed by high-pressure torsion
Disks of coarse-grained pure Cu were processed by high-pressure torsion (HPT) and the microhardness and microstructural parameters were used to reveal the evolution of homogeneity. It is shown that the microstructures at the centers of the disks are significantly refined by HPT and an essentially homogeneous microstructure is achieved at strains above 15. An analysis demonstrates that microstructural homogeneity is achieved most readily in materials having either high or low, rather than intermediate, stacking fault energies.
copper, high-pressure torsion, homogeneity, microhardness
560-563
An, X.H.
18016416-a17d-4882-aaa6-5a3c1160e9a9
Wu, S.D.
6df11381-5cbc-4b9b-ab65-b18b15272221
Zhang, Z..F.
b153f407-796a-4460-85b8-c56a90d5480d
Figueiredo, R.B.
1b4f5fa6-b201-4435-8f5e-13833fc8d504
Gao, N
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
September 2010
An, X.H.
18016416-a17d-4882-aaa6-5a3c1160e9a9
Wu, S.D.
6df11381-5cbc-4b9b-ab65-b18b15272221
Zhang, Z..F.
b153f407-796a-4460-85b8-c56a90d5480d
Figueiredo, R.B.
1b4f5fa6-b201-4435-8f5e-13833fc8d504
Gao, N
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
An, X.H., Wu, S.D., Zhang, Z..F., Figueiredo, R.B., Gao, N and Langdon, T.G.
(2010)
Evolution of microstructural homogeneity in copper processed by high-pressure torsion.
Scripta Materialia, 63 (5), .
(doi:10.1016/j.scriptamat.2010.05.030).
Abstract
Disks of coarse-grained pure Cu were processed by high-pressure torsion (HPT) and the microhardness and microstructural parameters were used to reveal the evolution of homogeneity. It is shown that the microstructures at the centers of the disks are significantly refined by HPT and an essentially homogeneous microstructure is achieved at strains above 15. An analysis demonstrates that microstructural homogeneity is achieved most readily in materials having either high or low, rather than intermediate, stacking fault energies.
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Published date: September 2010
Keywords:
copper, high-pressure torsion, homogeneity, microhardness
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 158849
URI: http://eprints.soton.ac.uk/id/eprint/158849
ISSN: 1359-6462
PURE UUID: 790778b7-ed8a-4bce-ad32-bd82f4eb24f6
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Date deposited: 24 Jun 2010 08:45
Last modified: 14 Mar 2024 02:47
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Contributors
Author:
X.H. An
Author:
S.D. Wu
Author:
Z..F. Zhang
Author:
R.B. Figueiredo
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