Microstructural evolution in pure aluminium and a 7034 alloy processed by equal channel angular pressing
Microstructural evolution in pure aluminium and a 7034 alloy processed by equal channel angular pressing
Experiments were conducted to evaluate the microstructural evolution occurring in pure
aluminium and a spray-cast Al-7034 alloy after processing through equal-channel angular
pressing (ECAP). Electron back-scatter diffraction (EBSD) was used to determine the
grain boundary misorientations and the texture after ECAP and differential scanning
calorimetry (DSC) was employed to evaluate the nature of thermal effects taking place
during heating. The results demonstrate there is an increase in the fraction of boundaries
having high angles of misorientation with increasing strain. For pure aluminium, there is
an S texture {122} <634> after 4 passes and a brass texture {011} <211> after 8 passes.
For the Al-7034 alloy, the textures changes from a fibre <111>x texture in the as-received
condition to a <101>y after 1 pass, <111>y after 4 passes and <100>z after 8 passes. For
the Al-7034 alloy, the DSC analysis identifies the occurrence of several thermal effects
during heating involving the formation, coarsening, dissolution and melting of the ?-phase.
856-861
Institute of Materials Engineering Australasia
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Starink, M.J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2004
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Starink, M.J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Gao, N., Starink, M.J., Xu, C. and Langdon, T.G.
(2004)
Microstructural evolution in pure aluminium and a 7034 alloy processed by equal channel angular pressing.
Nie, J.F., Morton, A.J. and Muddle, B.C.
(eds.)
In Proceedings of 9th International Conference on Aluminium Alloys.
Institute of Materials Engineering Australasia.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Experiments were conducted to evaluate the microstructural evolution occurring in pure
aluminium and a spray-cast Al-7034 alloy after processing through equal-channel angular
pressing (ECAP). Electron back-scatter diffraction (EBSD) was used to determine the
grain boundary misorientations and the texture after ECAP and differential scanning
calorimetry (DSC) was employed to evaluate the nature of thermal effects taking place
during heating. The results demonstrate there is an increase in the fraction of boundaries
having high angles of misorientation with increasing strain. For pure aluminium, there is
an S texture {122} <634> after 4 passes and a brass texture {011} <211> after 8 passes.
For the Al-7034 alloy, the textures changes from a fibre <111>x texture in the as-received
condition to a <101>y after 1 pass, <111>y after 4 passes and <100>z after 8 passes. For
the Al-7034 alloy, the DSC analysis identifies the occurrence of several thermal effects
during heating involving the formation, coarsening, dissolution and melting of the ?-phase.
More information
Published date: 2004
Venue - Dates:
9th International Conference on Aluminium Alloys (ICAA9), Brisbane, Australia, 2004-08-02 - 2004-08-05
Identifiers
Local EPrints ID: 22733
URI: http://eprints.soton.ac.uk/id/eprint/22733
PURE UUID: 0cb10c67-6efb-454a-9a88-818018ee2e31
Catalogue record
Date deposited: 09 Mar 2007
Last modified: 16 Mar 2024 03:27
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Contributors
Author:
C. Xu
Editor:
J.F. Nie
Editor:
A.J. Morton
Editor:
B.C. Muddle
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