Formation of fivefold deformation twins in an ultrafine-grained copper alloy processed by high-pressure torsion
Formation of fivefold deformation twins in an ultrafine-grained copper alloy processed by high-pressure torsion
Fivefold deformation twins (DTs) are formed in an ultrafine grain, with a size of 100 nm, of a Cu–16 at.% Al alloy processed by high-pressure torsion. Formation occurs through the sequential emission of partial dislocations from grain boundaries and other multiple twin boundaries. These observations confirm the emission of partial dislocations from multiple-fold nodes which can be attributed to increased twinnability via the introduction of Al atoms which lower the driving force for partial emission.
cu–al alloy, fivefold deformation twin, ultrafine grains, high-pressure torsion, twinnability
249-252
An, X.H.
18016416-a17d-4882-aaa6-5a3c1160e9a9
Lin, Q.Y.
4c73380c-7f6e-419b-a7ad-62e00e8c5bac
Wu, S.D.
6df11381-5cbc-4b9b-ab65-b18b15272221
Zhang, Z.F.
32ae683a-dc37-4bb4-89b3-ecf266a4c4c9
Figueiredo, R.B.
1b4f5fa6-b201-4435-8f5e-13833fc8d504
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
February 2011
An, X.H.
18016416-a17d-4882-aaa6-5a3c1160e9a9
Lin, Q.Y.
4c73380c-7f6e-419b-a7ad-62e00e8c5bac
Wu, S.D.
6df11381-5cbc-4b9b-ab65-b18b15272221
Zhang, Z.F.
32ae683a-dc37-4bb4-89b3-ecf266a4c4c9
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., Lin, Q.Y., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N. and Langdon, T.G.
(2011)
Formation of fivefold deformation twins in an ultrafine-grained copper alloy processed by high-pressure torsion.
Scripta Materialia, 64 (3), .
(doi:10.1016/j.scriptamat.2010.10.012).
Abstract
Fivefold deformation twins (DTs) are formed in an ultrafine grain, with a size of 100 nm, of a Cu–16 at.% Al alloy processed by high-pressure torsion. Formation occurs through the sequential emission of partial dislocations from grain boundaries and other multiple twin boundaries. These observations confirm the emission of partial dislocations from multiple-fold nodes which can be attributed to increased twinnability via the introduction of Al atoms which lower the driving force for partial emission.
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Published date: February 2011
Keywords:
cu–al alloy, fivefold deformation twin, ultrafine grains, high-pressure torsion, twinnability
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 167975
URI: http://eprints.soton.ac.uk/id/eprint/167975
ISSN: 1359-6462
PURE UUID: d8c4d4c0-02ab-42d3-a27f-337b157fb799
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Date deposited: 22 Nov 2010 13:18
Last modified: 14 Mar 2024 02:47
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Contributors
Author:
X.H. An
Author:
Q.Y. Lin
Author:
S.D. Wu
Author:
Z.F. Zhang
Author:
R.B. Figueiredo
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