bibtype J - Journal Article
ARLID 0347197
utime 20240103193839.6
mtime 20101101235959.9
WOS 000280468300012
title (primary) (eng) Model of Structural Fragmentation Induced by High Pressure Torsion
specification
page_count 11 s.
serial
ARLID cav_un_epca*0084480
ISSN 1606-5131
title Reviews on Advanced Materials Science
volume_id 25
volume 1 (2010)
page_num 88-98
keyword High-pressure torsion
keyword intergranular glide
keyword homogeneous deformation mode
author (primary)
ARLID cav_un_auth*0044342
name1 Kratochvíl
name2 J.
country CZ
author
ARLID cav_un_auth*0101142
name1 Kružík
name2 Martin
full_dept (cz) Matematická teorie rozhodování
full_dept Department of Decision Making Theory
department (cz) MTR
department MTR
institution UTIA-B
full_dept Department of Decision Making Theory
fullinstit Ústav teorie informace a automatizace AV ČR, v. v. i.
author
ARLID cav_un_auth*0258411
name1 Sedláček
name2 R.
country DE
source
url http://library.utia.cas.cz/separaty/2010/MTR/kruzik-model of structural fragmentation induced by high pressure torsion.pdf
cas_special
research CEZ:AV0Z10750506
abstract (eng) The paper analyzes mechanisms of ultra-fine grain substructure formation as observed in high pressure torsion (HPT) experiments. Accepting that HPT shearing is achieved by intergranular glide (M. Hafok and R. Pippan, Scripta Materialia, 56:757-760, 2007) the fragmentation process is interpreted within the framework of crystal plasticity. The deformation is treated as a plastic flow though the adjustable crystal lattice fragmented into misoriented regions. The basic feature of the substructure formation is an effective rotation of the slip systems approaching asymptotically the observed steady state. The fragmentation is interpreted as an instability of the homogeneous deformation mode. It is proposed that the rotation causes a continuous reconstruction of the substructure pattern. The hindered destruction of the previous pattern leads to enhanced hardening.
reportyear 2011
RIV BM
num_of_auth 3
permalink http://hdl.handle.net/11104/0188029
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mrcbU34 000280468300012 WOS
mrcbU63 cav_un_epca*0084480 Reviews on Advanced Materials Science 1606-5131 1605-8127 Roč. 25 č. 1 2010 88 98