Improving the superplastic properties of a two-phase Mg–8% Li alloy through processing by ECAP
Improving the superplastic properties of a two-phase Mg–8% Li alloy through processing by ECAP
Significant grain refinement was achieved in a cast Mg–8 mass% Li alloy through processing by equal-channel angular pressing (ECAP) using a die having an internal channel angle of 110° and a pressing temperature of 473 K. Following extrusion and subsequent ECAP through two passes, the alloy exhibited excellent superplastic properties including a maximum elongation of ~970% at 473 K when using an initial strain rate of 1.0 × 10?4 s?1. The strain rate sensitivities under the optimum superplastic conditions were measured as m ? 0.4–0.6. The maximum elongation achieved in this investigation is very high by comparison with other Mg alloys tested in tension at similar temperatures and strain rates.
equal-channel angular pressing, magnesium–lithium alloy, strain rate sensitivity, superplasticity
439-442
Furui, Mitsuaki
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Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Aida, Tetsuo
cf28e740-7d87-4e1d-ab83-0a6c952a1cf1
Inoue, Makoto
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Anada, Hiroshi
0596505b-4c9e-4e7c-a87c-45ef7ff6232e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2005
Furui, Mitsuaki
7f674df3-1a1b-4098-94d5-804a0fad9e6b
Xu, Cheng
af526865-aee4-4ef6-8174-def5c38149a2
Aida, Tetsuo
cf28e740-7d87-4e1d-ab83-0a6c952a1cf1
Inoue, Makoto
f4a69fd6-5b23-4268-998a-db55f9314d3d
Anada, Hiroshi
0596505b-4c9e-4e7c-a87c-45ef7ff6232e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Furui, Mitsuaki, Xu, Cheng, Aida, Tetsuo, Inoue, Makoto, Anada, Hiroshi and Langdon, Terence G.
(2005)
Improving the superplastic properties of a two-phase Mg–8% Li alloy through processing by ECAP.
Materials Science and Engineering: A, 410-411, .
(doi:10.1016/j.msea.2005.08.143).
Abstract
Significant grain refinement was achieved in a cast Mg–8 mass% Li alloy through processing by equal-channel angular pressing (ECAP) using a die having an internal channel angle of 110° and a pressing temperature of 473 K. Following extrusion and subsequent ECAP through two passes, the alloy exhibited excellent superplastic properties including a maximum elongation of ~970% at 473 K when using an initial strain rate of 1.0 × 10?4 s?1. The strain rate sensitivities under the optimum superplastic conditions were measured as m ? 0.4–0.6. The maximum elongation achieved in this investigation is very high by comparison with other Mg alloys tested in tension at similar temperatures and strain rates.
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Published date: 2005
Additional Information:
The Langdon Symposium: Flow and forming of Crystalline Materials
Keywords:
equal-channel angular pressing, magnesium–lithium alloy, strain rate sensitivity, superplasticity
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 23817
URI: http://eprints.soton.ac.uk/id/eprint/23817
ISSN: 0921-5093
PURE UUID: 78018134-c30f-4f36-a530-c7513e26b937
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Date deposited: 21 Mar 2006
Last modified: 16 Mar 2024 03:28
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Author:
Mitsuaki Furui
Author:
Cheng Xu
Author:
Tetsuo Aida
Author:
Makoto Inoue
Author:
Hiroshi Anada
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