Creep behaviour of an Aluminum 7034 alloy processed by ECAP
Creep behaviour of an Aluminum 7034 alloy processed by ECAP
Processing by equal-channel angular pressing (ECAP) of a commercial Al-7034 alloy at a temperature of 473 K gives an ultrafine grain size of ∼0.3 μm and superplastic elongations of more than 1000% at high strain rates (•10-2 s-1) when testing at 673 K. The creep behavior of the as-pressed alloy was investigated at temperatures of 473, 573 and 673 K and the results are plotted as strain rate against flow stress. The experimental data are examined with emphasis on the strain rate range associated with superplastic elongations. The creep behavior of the alloy in the as-received condition was also evaluated. The results show good agreement with a theoretical model for grain boundary sliding under superplastic conditions.
9780873396288
439-446
Minerals, Metals and Materials Society
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2006
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Xu, C. and Langdon, T.G.
(2006)
Creep behaviour of an Aluminum 7034 alloy processed by ECAP.
Zhu, Y.T., Langdon, T.G., Horita, Z., Zehetbauer, M.J, Semiatin, S.L and Lowe, T.C.
(eds.)
In Ultafined Grained Materials IV.
Minerals, Metals and Materials Society.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Processing by equal-channel angular pressing (ECAP) of a commercial Al-7034 alloy at a temperature of 473 K gives an ultrafine grain size of ∼0.3 μm and superplastic elongations of more than 1000% at high strain rates (•10-2 s-1) when testing at 673 K. The creep behavior of the as-pressed alloy was investigated at temperatures of 473, 573 and 673 K and the results are plotted as strain rate against flow stress. The experimental data are examined with emphasis on the strain rate range associated with superplastic elongations. The creep behavior of the alloy in the as-received condition was also evaluated. The results show good agreement with a theoretical model for grain boundary sliding under superplastic conditions.
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Published date: 2006
Venue - Dates:
2006 TMS Annual Meeting, San Antonio, USA, 2006-03-12 - 2006-03-16
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 43628
URI: http://eprints.soton.ac.uk/id/eprint/43628
ISBN: 9780873396288
PURE UUID: c626f3f8-6dc8-4038-847c-e5326a567444
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Date deposited: 30 Jan 2007
Last modified: 09 Jan 2022 03:09
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Contributors
Author:
C. Xu
Editor:
Y.T. Zhu
Editor:
T.G. Langdon
Editor:
Z. Horita
Editor:
M.J Zehetbauer
Editor:
S.L Semiatin
Editor:
T.C. Lowe
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