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Grain refinement response during twist extrusion of an Al-0.13 % Mg alloy

Berta, Marco ; Orlov, Dmitry LU orcid and Prangnell, Philip B. (2007) In International Journal of Materials Research 98(3). p.200-204
Abstract

Twist extrusion is a recently developed method of severe plastic deformation that principally uses torsion to generate high strains in a repeatedly extruded billet, while maintaining a constant cross-section. The method thus results in a deformation gradient across the billet section. To date, the grain refinement behaviour of alloys deformed by twist extrusion have only been investigated qualitatively. In this study high resolution electron backscattered diffraction has been used to quantify the deformation structures produced by twist extrusion, in a model, single-phase, Al-0.13 % Mg alloy, with the aim of investigating the potential of the technique for producing ultra-fine grained metals, as well as the homogeneity of the... (More)

Twist extrusion is a recently developed method of severe plastic deformation that principally uses torsion to generate high strains in a repeatedly extruded billet, while maintaining a constant cross-section. The method thus results in a deformation gradient across the billet section. To date, the grain refinement behaviour of alloys deformed by twist extrusion have only been investigated qualitatively. In this study high resolution electron backscattered diffraction has been used to quantify the deformation structures produced by twist extrusion, in a model, single-phase, Al-0.13 % Mg alloy, with the aim of investigating the potential of the technique for producing ultra-fine grained metals, as well as the homogeneity of the microstructure and strain distribution in processed billets.

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author
; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aluminium, Severe plastic deformation, Twist extrusion, Ultrafine grains
in
International Journal of Materials Research
volume
98
issue
3
pages
5 pages
publisher
Carl Hanser Verlag GmbH
external identifiers
  • scopus:34047265175
ISSN
1862-5282
DOI
10.3139/146.101461
language
English
LU publication?
no
id
25768266-d637-49ef-b66a-a79313df8402
date added to LUP
2016-06-20 15:43:58
date last changed
2022-01-30 04:37:12
@article{25768266-d637-49ef-b66a-a79313df8402,
  abstract     = {{<p>Twist extrusion is a recently developed method of severe plastic deformation that principally uses torsion to generate high strains in a repeatedly extruded billet, while maintaining a constant cross-section. The method thus results in a deformation gradient across the billet section. To date, the grain refinement behaviour of alloys deformed by twist extrusion have only been investigated qualitatively. In this study high resolution electron backscattered diffraction has been used to quantify the deformation structures produced by twist extrusion, in a model, single-phase, Al-0.13 % Mg alloy, with the aim of investigating the potential of the technique for producing ultra-fine grained metals, as well as the homogeneity of the microstructure and strain distribution in processed billets.</p>}},
  author       = {{Berta, Marco and Orlov, Dmitry and Prangnell, Philip B.}},
  issn         = {{1862-5282}},
  keywords     = {{Aluminium; Severe plastic deformation; Twist extrusion; Ultrafine grains}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{200--204}},
  publisher    = {{Carl Hanser Verlag GmbH}},
  series       = {{International Journal of Materials Research}},
  title        = {{Grain refinement response during twist extrusion of an Al-0.13 % Mg alloy}},
  url          = {{http://dx.doi.org/10.3139/146.101461}},
  doi          = {{10.3139/146.101461}},
  volume       = {{98}},
  year         = {{2007}},
}