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Achieving high strain rate superplasticity in Al-Mg-Sc-Zr alloys after severe plastic deformation

Achieving high strain rate superplasticity in Al-Mg-Sc-Zr alloys after severe plastic deformation
Achieving high strain rate superplasticity in Al-Mg-Sc-Zr alloys after severe plastic deformation
The application of severe plastic deformation to metallic alloys via the procedure of equal-channel angular pressing (ECAP) leads to significant grain refinement and an opportunity for achieving superplastic deformability at very high strain rates (10–2 s–1). The development of high-strain-rate superplastic alloys is important because it provides the possibility for making use of superplastic forming for the rapid fabrication of complex components. Experiments were conducted to evaluate the mechanical properties of a series of Al–Mg– Sc–Zr alloys after ECAP. The results demonstrate that some of these alloys exhibit exceptionally high tensile ductilities (elongations up to > 2000%) at very rapid strain rates.
0031-918X
45-53
Perevezentsev, V.N.
4c809351-d545-45de-9fe6-b57c2753898c
Chuvil’deev, V.N.
6e6d9349-8bbd-4408-ac5f-a65145b3cc51
Sysoev, A.N.
e3b5aa77-102a-45c3-96bb-2f8e09300a66
Kopylov, V.I.
4d76f7e4-0923-4acc-8982-03e25fa1dc3c
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Perevezentsev, V.N.
4c809351-d545-45de-9fe6-b57c2753898c
Chuvil’deev, V.N.
6e6d9349-8bbd-4408-ac5f-a65145b3cc51
Sysoev, A.N.
e3b5aa77-102a-45c3-96bb-2f8e09300a66
Kopylov, V.I.
4d76f7e4-0923-4acc-8982-03e25fa1dc3c
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Perevezentsev, V.N., Chuvil’deev, V.N., Sysoev, A.N., Kopylov, V.I. and Langdon, T.G. (2002) Achieving high strain rate superplasticity in Al-Mg-Sc-Zr alloys after severe plastic deformation. Physics of Metals and Metallography, 94 (Supplement 1), 45-53.

Record type: Article

Abstract

The application of severe plastic deformation to metallic alloys via the procedure of equal-channel angular pressing (ECAP) leads to significant grain refinement and an opportunity for achieving superplastic deformability at very high strain rates (10–2 s–1). The development of high-strain-rate superplastic alloys is important because it provides the possibility for making use of superplastic forming for the rapid fabrication of complex components. Experiments were conducted to evaluate the mechanical properties of a series of Al–Mg– Sc–Zr alloys after ECAP. The results demonstrate that some of these alloys exhibit exceptionally high tensile ductilities (elongations up to > 2000%) at very rapid strain rates.

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Published date: 2002

Identifiers

Local EPrints ID: 23787
URI: http://eprints.soton.ac.uk/id/eprint/23787
ISSN: 0031-918X
PURE UUID: 46e9b8e8-2e6d-4fda-8147-01a1a8e6a21d
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

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Date deposited: 30 Mar 2006
Last modified: 20 Jul 2019 01:02

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Contributors

Author: V.N. Perevezentsev
Author: V.N. Chuvil’deev
Author: A.N. Sysoev
Author: V.I. Kopylov
Author: T.G. Langdon ORCID iD

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