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An examination of the superplastic characteristics of Al-Mg-Sc alloys after processing

An examination of the superplastic characteristics of Al-Mg-Sc alloys after processing
An examination of the superplastic characteristics of Al-Mg-Sc alloys after processing
The Al-Mg-Sc alloys have become important materials in research conducted on superplasticity in aluminum-based alloys. Many results are now available and this provides an opportunity to examine the consistency of these data and also to make a direct comparison with the predicted rate of flow in conventional superplasticity. Accordingly, all available data were tabulated with divisions according to whether the samples were prepared without processing using severe plastic deformation (SPD) techniques or they were processed using the SPD procedures of equal-channel angular pressing or high-pressure torsion or they were obtained from friction stir processing. It is shown that all results are mutually consistent, the measured superplastic strain rates have no clear dependence on the precise chemical compositions of the alloys and there is general agreement, to within less than one order of magnitude of strain rate, with the theoretical prediction for superplastic flow in conventional materials.
4541-4553
Pereira, Pedro H.R.
9ee129fd-0e06-482d-990c-971aaf83b1d0
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Kawaski, Megumi
a5ca3e53-e6b0-4723-8b9c-147d2b4e6841
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Pereira, Pedro H.R.
9ee129fd-0e06-482d-990c-971aaf83b1d0
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Kawaski, Megumi
a5ca3e53-e6b0-4723-8b9c-147d2b4e6841
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Pereira, Pedro H.R., Huang, Yi, Kawaski, Megumi and Langdon, Terence G. (2017) An examination of the superplastic characteristics of Al-Mg-Sc alloys after processing. Journal of Materials Research, 32 (24), 4541-4553. (doi:10.1557/jmr.2017.286).

Record type: Article

Abstract

The Al-Mg-Sc alloys have become important materials in research conducted on superplasticity in aluminum-based alloys. Many results are now available and this provides an opportunity to examine the consistency of these data and also to make a direct comparison with the predicted rate of flow in conventional superplasticity. Accordingly, all available data were tabulated with divisions according to whether the samples were prepared without processing using severe plastic deformation (SPD) techniques or they were processed using the SPD procedures of equal-channel angular pressing or high-pressure torsion or they were obtained from friction stir processing. It is shown that all results are mutually consistent, the measured superplastic strain rates have no clear dependence on the precise chemical compositions of the alloys and there is general agreement, to within less than one order of magnitude of strain rate, with the theoretical prediction for superplastic flow in conventional materials.

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Langdon-JMR 2017 accepted manuscript - Accepted Manuscript
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Accepted/In Press date: 29 June 2017
e-pub ahead of print date: 25 July 2017
Published date: 28 December 2017
Additional Information: Focus Issue: Mechanical Properties and Microstructure of Advanced Metallic Alloys—in Honor of Prof. Haël Mughrabi PART B

Identifiers

Local EPrints ID: 412879
URI: http://eprints.soton.ac.uk/id/eprint/412879
PURE UUID: b151574a-15ae-435b-90a9-bd5eeb0c7ee8
ORCID for Yi Huang: ORCID iD orcid.org/0000-0001-9259-8123
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

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Date deposited: 07 Aug 2017 13:07
Last modified: 16 Mar 2024 05:36

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Contributors

Author: Pedro H.R. Pereira
Author: Yi Huang ORCID iD
Author: Megumi Kawaski

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