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The use of severe plastic deformation for microstructural control

Record type: Article

The microstructure of a metal may be very significantly changed by subjecting the material to severe plastic deformation (SPD) through procedures such as equal-channel angular pressing (ECAP) and high-pressure torsion. These procedures lead to a substantial refinement in the grain size so that the grains are reduced to, typically, the submicrometer or even the nanometer range. This paper describes the application of SPD to pure aluminum and aluminum-based alloys, with emphasis on the factors influencing the development of homogeneous microstructures of equiaxed grains separated by high-angle grain boundaries. Materials subjected to ECAP are capable of exhibiting exceptional mechanical properties including superplastic ductilities at very rapid strain rates. Examples of this behavior are presented and results are described showing the potential for using this approach in superplastic forming applications at high strain rates.

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Citation

Furukawa, Minoru, Horita, Zenji, Nemoto, Minoru and Langdon, Terence G. (2002) The use of severe plastic deformation for microstructural control Materials Science and Engineering: A, 324, (1-2), pp. 82-89. (doi:10.1016/S0921-5093(01)01288-6).

More information

Published date: 2002
Keywords: aluminum alloys, equal-channel angular pressing, severe plastic deformation, superplasticity, ultrafine grains
Organisations: Engineering Sciences

Identifiers

Local EPrints ID: 23854
URI: http://eprints.soton.ac.uk/id/eprint/23854
ISSN: 0921-5093
PURE UUID: 28225e03-1548-4f77-8a8c-375aee3d60bf
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 29 Mar 2006
Last modified: 17 Jul 2017 16:16

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Contributors

Author: Minoru Furukawa
Author: Zenji Horita
Author: Minoru Nemoto

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