Analysis of deformation bands and cell structure in cyclically deformed near-[111]-oriented copper single crystals

In this study, we investigate the deformation bands (DBs), viz. DBI and DBII, and cell bands (CBs) in the near-[111]-multiple-slip-oriented single crystals during cyclic deformation. Three different types each of DBIs [(111), (111), and (111)] and DBIIs [(211), (121), and (112)] can be summarized as...

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Bibliographic Details
Published in:International journal of fatigue 2021-12, Vol.153, p.1
Main Authors: Ma, Tianchang, Chahara, Kentaro, Wu, Jingya, Miyazawa, Tomotaka, Fujii, Toshiyuki
Format: Article
Language:English
Subjects:
Banded structure
Cross slip
Crystal structure
Deformation analysis
Materials fatigue
Single crystals
Slip planes
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Description
Summary:In this study, we investigate the deformation bands (DBs), viz. DBI and DBII, and cell bands (CBs) in the near-[111]-multiple-slip-oriented single crystals during cyclic deformation. Three different types each of DBIs [(111), (111), and (111)] and DBIIs [(211), (121), and (112)] can be summarized as the primarily activated slip plane and the combination of activated primary and coplanar slip systems, respectively. The formation planes of CBs [(121), (112), and (211)] are perpendicular to the cross-slip plane and parallel to the primary slip direction. The highly symmetrical characteristics of multiple-slip-oriented single crystals can produce inconsistent correspondences between DBs and CBs.
ISSN:0142-1123
1879-3452
DOI:10.1016/j.ijfatigue.2021.106517