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Characteristics of superplasticity in an ultrafine-grained Aluminum Alloy processed by ECA pressing

Characteristics of superplasticity in an ultrafine-grained Aluminum Alloy processed by ECA pressing
Characteristics of superplasticity in an ultrafine-grained Aluminum Alloy processed by ECA pressing
Equal-channel angular pressing was used to process a commercial 1421 aluminum alloy at temperatures from 340 to 410 °C. An optimum ultrafine microstructure was achieved after pressing at 370 °C with an equiaxed grain size of ~0.3–0.4 ?m. Tensile testing showed this material is superplastic at 400 °C with elongations up to ~1500%. Offsets in surface marker lines demonstrate grain boundary sliding is the dominant flow process.
aluminum alloy, equal-channel angular pressing, grain boundary sliding, superplasticity, transmission electron microscopy
1359-6462
467-472
Islamgaliev, R.K.
2405ccdf-fd82-44fb-b099-8db826d1777b
Yunusova, N.F.
75f2a5f1-909c-4263-b61d-8ef02fdd8621
Valiev, R.Z.
f32c36f3-ce3a-4531-b8ef-0b18ad6626da
Tsenev, N.K.
d51e7f23-9b26-4415-b330-798e7150e25b
Perevezentsev, V.N.
4c809351-d545-45de-9fe6-b57c2753898c
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Islamgaliev, R.K.
2405ccdf-fd82-44fb-b099-8db826d1777b
Yunusova, N.F.
75f2a5f1-909c-4263-b61d-8ef02fdd8621
Valiev, R.Z.
f32c36f3-ce3a-4531-b8ef-0b18ad6626da
Tsenev, N.K.
d51e7f23-9b26-4415-b330-798e7150e25b
Perevezentsev, V.N.
4c809351-d545-45de-9fe6-b57c2753898c
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Islamgaliev, R.K., Yunusova, N.F., Valiev, R.Z., Tsenev, N.K., Perevezentsev, V.N. and Langdon, T.G. (2003) Characteristics of superplasticity in an ultrafine-grained Aluminum Alloy processed by ECA pressing. Scripta Materialia, 49 (5), 467-472. (doi:10.1016/S1359-6462(03)00291-4).

Record type: Article

Abstract

Equal-channel angular pressing was used to process a commercial 1421 aluminum alloy at temperatures from 340 to 410 °C. An optimum ultrafine microstructure was achieved after pressing at 370 °C with an equiaxed grain size of ~0.3–0.4 ?m. Tensile testing showed this material is superplastic at 400 °C with elongations up to ~1500%. Offsets in surface marker lines demonstrate grain boundary sliding is the dominant flow process.

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Published date: 2003
Keywords: aluminum alloy, equal-channel angular pressing, grain boundary sliding, superplasticity, transmission electron microscopy
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Identifiers

Local EPrints ID: 23871
URI: http://eprints.soton.ac.uk/id/eprint/23871
DOI: doi:10.1016/S1359-6462(03)00291-4
ISSN: 1359-6462
PURE UUID: 44929563-bae3-4f19-a48b-615f4f406d6e
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 24 Mar 2006
Last modified: 16 Mar 2024 03:28

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Contributors

Author: R.K. Islamgaliev
Author: N.F. Yunusova
Author: R.Z. Valiev
Author: N.K. Tsenev
Author: V.N. Perevezentsev
Author: T.G. Langdon ORCID iD

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