Role of strain reversal in grain refinement by severe plastic deformation
Orlov, Dmitry LU
; Todaka, Yoshikazu
; Umemoto, Minoru
and Tsuji, Nobuhiro
(2009)
In Materials Science & Engineering: A
499(1-2).
p.427-433
- Abstract
- Most of severe plastic deformation processes involve strain reversal. Till now quite big number of researches has been done on indirect study of its role, which discusses the effect of loading path in ultra-fine grained structure formation. This work is aimed to study directly the role of the strain reversal in grain refinement by severe plastic deformation. A 99.99% purity aluminum was processed by high pressure torsion up to 96° rotation (maximal equivalent strain ε ≈ 8) with two deformation modes: monotonic and reversal deformations with a step of 12° rotation (maximal equivalent strain ε ≈ 1). It was shown that strain reversal retarded the grain refinement in comparison with the monotonic deformation. This explains slower rate of the... (More)
- Most of severe plastic deformation processes involve strain reversal. Till now quite big number of researches has been done on indirect study of its role, which discusses the effect of loading path in ultra-fine grained structure formation. This work is aimed to study directly the role of the strain reversal in grain refinement by severe plastic deformation. A 99.99% purity aluminum was processed by high pressure torsion up to 96° rotation (maximal equivalent strain ε ≈ 8) with two deformation modes: monotonic and reversal deformations with a step of 12° rotation (maximal equivalent strain ε ≈ 1). It was shown that strain reversal retarded the grain refinement in comparison with the monotonic deformation. This explains slower rate of the nanostructure formation of the SPD processes that involve strain reversal. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/558316de-89a8-4729-ae95-3f697b840410
- author
- Orlov, Dmitry
LU
; Todaka, Yoshikazu
; Umemoto, Minoru
and Tsuji, Nobuhiro
- publishing date
- 2009-01-15
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Aluminum
- in
- Materials Science & Engineering: A
- volume
- 499
- issue
- 1-2
- pages
- 7 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:55949085745
- ISSN
- 0921-5093
- DOI
- 10.1016/j.msea.2008.09.036
- language
- English
- LU publication?
- no
- id
- 558316de-89a8-4729-ae95-3f697b840410
- date added to LUP
- 2016-06-20 15:59:22
- date last changed
- 2022-03-01 02:12:12
@article{558316de-89a8-4729-ae95-3f697b840410,
abstract = {{Most of severe plastic deformation processes involve strain reversal. Till now quite big number of researches has been done on indirect study of its role, which discusses the effect of loading path in ultra-fine grained structure formation. This work is aimed to study directly the role of the strain reversal in grain refinement by severe plastic deformation. A 99.99% purity aluminum was processed by high pressure torsion up to 96° rotation (maximal equivalent strain ε ≈ 8) with two deformation modes: monotonic and reversal deformations with a step of 12° rotation (maximal equivalent strain ε ≈ 1). It was shown that strain reversal retarded the grain refinement in comparison with the monotonic deformation. This explains slower rate of the nanostructure formation of the SPD processes that involve strain reversal.}},
author = {{Orlov, Dmitry and Todaka, Yoshikazu and Umemoto, Minoru and Tsuji, Nobuhiro}},
issn = {{0921-5093}},
keywords = {{Aluminum}},
language = {{eng}},
month = {{01}},
number = {{1-2}},
pages = {{427--433}},
publisher = {{Elsevier}},
series = {{Materials Science & Engineering: A}},
title = {{Role of strain reversal in grain refinement by severe plastic deformation}},
url = {{http://dx.doi.org/10.1016/j.msea.2008.09.036}},
doi = {{10.1016/j.msea.2008.09.036}},
volume = {{499}},
year = {{2009}},
}