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Superplasticity of untrafine-grained Al-3% Mg-0.2% Sc alloy produced by equal-channel angular pressing

Superplasticity of untrafine-grained Al-3% Mg-0.2% Sc alloy produced by equal-channel angular pressing
Superplasticity of untrafine-grained Al-3% Mg-0.2% Sc alloy produced by equal-channel angular pressing
This paper describes grain refinement of an Al-3%Mg-0.2%Sc alloy using the equal-channel angular pressing (ECAP) technique at room temperature. It is shown that a grain size of 0.2µm is obtained with this technique. The paper also presents the results of tensile tests for the fine-grained Al-3% Mg-0.2% Sc alloy over a wide range of strain rates. Elongations of more than 1000% are attained at a temperature of 673K in a high strain rate range of more than 10-2s-1. Transmission electron microscopy and scanning ion microscopy are employed for microstructural observations before and after tensile testing. The results are compared with those of a cold-rolled Al-3%Mg-0.2%Sc alloy. It is demonstrated that grain refinement using the ECAP technique is useful for the production of Al alloys exhibiting high strain rate superplasticity.
0451-5994
376-380
Fujita, T.
7607fd4e-5c31-468b-8630-7c08cb6a5bbd
Komura, S.
ed6e34ef-beb3-45d4-9836-dfc3bdbdafce
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Fujita, T.
7607fd4e-5c31-468b-8630-7c08cb6a5bbd
Komura, S.
ed6e34ef-beb3-45d4-9836-dfc3bdbdafce
Horita, Z.
84a80017-cbaf-4713-8346-6f69ac7ea63e
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Fujita, T., Komura, S., Horita, Z. and Langdon, T.G. (2000) Superplasticity of untrafine-grained Al-3% Mg-0.2% Sc alloy produced by equal-channel angular pressing. Journal of Japan Institute of Light Metals, 50 (8), 376-380.

Record type: Article

Abstract

This paper describes grain refinement of an Al-3%Mg-0.2%Sc alloy using the equal-channel angular pressing (ECAP) technique at room temperature. It is shown that a grain size of 0.2µm is obtained with this technique. The paper also presents the results of tensile tests for the fine-grained Al-3% Mg-0.2% Sc alloy over a wide range of strain rates. Elongations of more than 1000% are attained at a temperature of 673K in a high strain rate range of more than 10-2s-1. Transmission electron microscopy and scanning ion microscopy are employed for microstructural observations before and after tensile testing. The results are compared with those of a cold-rolled Al-3%Mg-0.2%Sc alloy. It is demonstrated that grain refinement using the ECAP technique is useful for the production of Al alloys exhibiting high strain rate superplasticity.

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More information

Published date: 2000
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 48647
URI: http://eprints.soton.ac.uk/id/eprint/48647
ISSN: 0451-5994
PURE UUID: e3484f6e-4305-4477-ab26-e96ff62cb390
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 08 Nov 2007
Last modified: 09 Jan 2022 03:09

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Contributors

Author: T. Fujita
Author: S. Komura
Author: Z. Horita
Author: T.G. Langdon ORCID iD

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