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

Berta, Marco; Orlov, Dmitry 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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Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
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
external identifiers
  • scopus:34047265175
ISSN
1862-5282
language
English
LU publication?
no
id
25768266-d637-49ef-b66a-a79313df8402
date added to LUP
2016-06-20 15:43:58
date last changed
2017-09-10 05:07:11
@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},
  keyword      = {Aluminium,Severe plastic deformation,Twist extrusion,Ultrafine grains},
  language     = {eng},
  number       = {3},
  pages        = {200--204},
  publisher    = {Carl Hanser Verlag},
  series       = {International Journal of Materials Research},
  title        = {Grain refinement response during twist extrusion of an Al-0.13 % Mg alloy},
  volume       = {98},
  year         = {2007},
}