Advanced

Plastic flow and grain refinement under simple shear-based severe plastic deformation processing

Orlov, D. LU ; Todaka, Y.; Umemoto, M.; Beygelzimer, Y.; Horita, Z. and Tsuji, N. (2009) International Conference Recent Developments in the Processing and Applications of Structural Metals and Alloys In Materials Science Forum 604-605. p.171-178
Abstract

In the present work, effects of loading scheme and strain reversal on structure evolution are studied by using high pressure torsion (HPT) and twist extrusion (TE) techniques. High purity aluminum (99.99%) was processed at room temperature up to a total average equivalent strain of ∼4.8 by TE and HPT with two deformation modes: monotonic and reversal deformation with a step of 12° rotation. It was revealed that microstructural change with straining observed in pure Al was a common consequence of the SPD processing and was not affected significantly by the loading scheme. At the same time, it was found that strain reversal retarded grain refinement in comparison with monotonic deformation.

Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
in
Materials Science Forum
volume
604-605
pages
8 pages
publisher
Trans Tech Publications Ltd
conference name
International Conference Recent Developments in the Processing and Applications of Structural Metals and Alloys
external identifiers
  • scopus:64349103578
ISSN
0255-5476
DOI
10.4028/www.scientific.net/MSF.604-605.171
language
English
LU publication?
no
id
655406d4-ea72-4a62-ab1d-ecf040ce03b0
date added to LUP
2016-06-20 15:41:01
date last changed
2017-09-10 05:07:09
@article{655406d4-ea72-4a62-ab1d-ecf040ce03b0,
  abstract     = {<p>In the present work, effects of loading scheme and strain reversal on structure evolution are studied by using high pressure torsion (HPT) and twist extrusion (TE) techniques. High purity aluminum (99.99%) was processed at room temperature up to a total average equivalent strain of ∼4.8 by TE and HPT with two deformation modes: monotonic and reversal deformation with a step of 12° rotation. It was revealed that microstructural change with straining observed in pure Al was a common consequence of the SPD processing and was not affected significantly by the loading scheme. At the same time, it was found that strain reversal retarded grain refinement in comparison with monotonic deformation.</p>},
  author       = {Orlov, D. and Todaka, Y. and Umemoto, M. and Beygelzimer, Y. and Horita, Z. and Tsuji, N.},
  issn         = {0255-5476},
  language     = {eng},
  pages        = {171--178},
  publisher    = {Trans Tech Publications Ltd},
  series       = {Materials Science Forum},
  title        = {Plastic flow and grain refinement under simple shear-based severe plastic deformation processing},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/MSF.604-605.171},
  volume       = {604-605},
  year         = {2009},
}