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A theoretical and experimental evaluation of repetitive corrugation and straightening: application to Al–Cu and Al–Cu–Sc alloys

A theoretical and experimental evaluation of repetitive corrugation and straightening: application to Al–Cu and Al–Cu–Sc alloys
A theoretical and experimental evaluation of repetitive corrugation and straightening: application to Al–Cu and Al–Cu–Sc alloys
Two alloys of Al–Cu and Al–Cu–Sc were processed for up to 4 passes using a facility for continuous repetitive corrugation and straightening (RCS). Hardness measurements were taken on the processed samples and specimens were cut from the processed sheets and tested in tension at room temperature. The results demonstrate that processing by RCS gives a very significant increase in hardness and this high level of hardness is introduced throughout the length of each sample. Thus, there is no wastage when metals are processed by RCS. The hardness values are further increased, and the degree of homogeneity is improved, if the samples are rotated by 90° between each consecutive pass through the RCS facility. The strength is higher for the Al–Cu–Sc alloy than for the Al–Cu alloy. A theoretical model is developed to explain the strength developed during processing by RCS. It is shown by calculation that the theoretical model is in excellent agreement with the experimental results.
aluminum–copper alloys, hardness, homogeneity, repetitive corrugation and straightening, scandium
0921-5093
282-287
Pandey, S.C.
f49e565c-b02d-4a35-b85c-89ffdff0caa9
Joseph, M.A.
b83383d2-e5e4-41c2-ad36-661f0288c00f
Pradeep, M.S.
60ed73ad-453a-44e7-afa1-d4935e55678a
Raghavendra, K.
b89e5777-a51f-41cb-aa61-7bcf7ce9feab
Ranganath, V.R.
54902cac-3634-4083-89c5-22a281a90891
Venkateswarlu, K.
5bdfe52c-a221-4f27-83fa-638f30e91bb0
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Pandey, S.C.
f49e565c-b02d-4a35-b85c-89ffdff0caa9
Joseph, M.A.
b83383d2-e5e4-41c2-ad36-661f0288c00f
Pradeep, M.S.
60ed73ad-453a-44e7-afa1-d4935e55678a
Raghavendra, K.
b89e5777-a51f-41cb-aa61-7bcf7ce9feab
Ranganath, V.R.
54902cac-3634-4083-89c5-22a281a90891
Venkateswarlu, K.
5bdfe52c-a221-4f27-83fa-638f30e91bb0
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Pandey, S.C., Joseph, M.A., Pradeep, M.S., Raghavendra, K., Ranganath, V.R., Venkateswarlu, K. and Langdon, Terence G. (2012) A theoretical and experimental evaluation of repetitive corrugation and straightening: application to Al–Cu and Al–Cu–Sc alloys. Materials Science and Engineering: A, 534, 282-287. (doi:10.1016/j.msea.2011.11.070).

Record type: Article

Abstract

Two alloys of Al–Cu and Al–Cu–Sc were processed for up to 4 passes using a facility for continuous repetitive corrugation and straightening (RCS). Hardness measurements were taken on the processed samples and specimens were cut from the processed sheets and tested in tension at room temperature. The results demonstrate that processing by RCS gives a very significant increase in hardness and this high level of hardness is introduced throughout the length of each sample. Thus, there is no wastage when metals are processed by RCS. The hardness values are further increased, and the degree of homogeneity is improved, if the samples are rotated by 90° between each consecutive pass through the RCS facility. The strength is higher for the Al–Cu–Sc alloy than for the Al–Cu alloy. A theoretical model is developed to explain the strength developed during processing by RCS. It is shown by calculation that the theoretical model is in excellent agreement with the experimental results.

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More information

e-pub ahead of print date: 1 December 2011
Published date: 1 February 2012
Keywords: aluminum–copper alloys, hardness, homogeneity, repetitive corrugation and straightening, scandium
Organisations: Bioengineering Group

Identifiers

Local EPrints ID: 334204
URI: https://eprints.soton.ac.uk/id/eprint/334204
ISSN: 0921-5093
PURE UUID: 7cf2f72d-5ec7-4964-ba4a-6ebd08119c9b
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 06 Mar 2012 15:07
Last modified: 26 Nov 2019 01:49

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Contributors

Author: S.C. Pandey
Author: M.A. Joseph
Author: M.S. Pradeep
Author: K. Raghavendra
Author: V.R. Ranganath
Author: K. Venkateswarlu

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