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Microstructure and properties of 7475 aluminum alloy after equal-channel angular pressing

Microstructure and properties of 7475 aluminum alloy after equal-channel angular pressing
Microstructure and properties of 7475 aluminum alloy after equal-channel angular pressing
Equal-Channel Angular Pressing (ECAP) was successfully conducted on a 7475 aluminum alloy at temperatures from room temperature to 773 K up to an equivalent true strain of ~12 using routes C or BC. The grain size was refined to within the range from ~0.3 - 1.9 ?m by ECAP at these different temperatures. There appears to be a grain refinement limit which is dependent upon the precise pressing temperature. The results from tensile testing indicate that ECAP leads to a significant improvement of ductility in the experimental alloy while the yield and tensile strength are also slightly improved. This paper reports investigations of the microstructural characteristics and the mechanical properties of the processed aluminum alloy.
aluminum 7475 alloy, equal-channel angular pressing, ductility, grain refinement
0-87339-523-9
429-438
Minerals, Metals & Materials Society
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Zhang, Z.
9f10922d-6793-4f6f-89e4-aa0125bb16ee
Zhao, X.
c32d0dd5-3ac6-4c9c-b41e-95baa08c7472
Wang, L.
ff28fc9d-dbeb-460f-943c-f49997f58bf7
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhu, Y.T.
Langdon, T.G.
Mishra, R.S.
Semiatin, S.L.
Saran, M.J.
Lowe, T.C.
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Xu, C.
66441ee5-1017-4177-abb2-7875c09bdc66
Zhang, Z.
9f10922d-6793-4f6f-89e4-aa0125bb16ee
Zhao, X.
c32d0dd5-3ac6-4c9c-b41e-95baa08c7472
Wang, L.
ff28fc9d-dbeb-460f-943c-f49997f58bf7
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhu, Y.T.
Langdon, T.G.
Mishra, R.S.
Semiatin, S.L.
Saran, M.J.
Lowe, T.C.

Wang, J., Xu, C., Zhang, Z., Zhao, X., Wang, L. and Langdon, T.G. (2002) Microstructure and properties of 7475 aluminum alloy after equal-channel angular pressing. In, Zhu, Y.T., Langdon, T.G., Mishra, R.S., Semiatin, S.L., Saran, M.J. and Lowe, T.C. (eds.) Ultrafine Grained Materials II. TMS Annual Meeting and Exhibition (21/02/02) Minerals, Metals & Materials Society, pp. 429-438.

Record type: Book Section

Abstract

Equal-Channel Angular Pressing (ECAP) was successfully conducted on a 7475 aluminum alloy at temperatures from room temperature to 773 K up to an equivalent true strain of ~12 using routes C or BC. The grain size was refined to within the range from ~0.3 - 1.9 ?m by ECAP at these different temperatures. There appears to be a grain refinement limit which is dependent upon the precise pressing temperature. The results from tensile testing indicate that ECAP leads to a significant improvement of ductility in the experimental alloy while the yield and tensile strength are also slightly improved. This paper reports investigations of the microstructural characteristics and the mechanical properties of the processed aluminum alloy.

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More information

Published date: 2002
Venue - Dates: TMS Annual Meeting and Exhibition, 2002-02-17 - 2002-02-21
Keywords: aluminum 7475 alloy, equal-channel angular pressing, ductility, grain refinement

Identifiers

Local EPrints ID: 23862
URI: http://eprints.soton.ac.uk/id/eprint/23862
ISBN: 0-87339-523-9
PURE UUID: 67d8de3e-ef24-4c78-898d-cd57dc26fa71
ORCID for T.G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 04 Apr 2006
Last modified: 20 Jul 2019 01:03

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Contributors

Author: J. Wang
Author: C. Xu
Author: Z. Zhang
Author: X. Zhao
Author: L. Wang
Author: T.G. Langdon ORCID iD
Editor: Y.T. Zhu
Editor: T.G. Langdon
Editor: R.S. Mishra
Editor: S.L. Semiatin
Editor: M.J. Saran
Editor: T.C. Lowe

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