Generating misorientations in shear deformation structures

Barnett, Matthew, Ma, Xiang and Oudin, Alexis 2004, Generating misorientations in shear deformation structures, Materials transactions (JIM), vol. 45, no. 7, pp. 2151-2156.

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Title Generating misorientations in shear deformation structures
Author(s) Barnett, Matthew
Ma, Xiang
Oudin, Alexis
Journal name Materials transactions (JIM)
Volume number 45
Issue number 7
Start page 2151
End page 2156
Publisher Japan Institute of Metals
Place of publication Sendai, Japan
Publication date 2004
ISSN 1345-9678
1347-5320
Keyword(s) torsion
deformation
misorientation
subgrains
texture simulation
Summary Of considerable importance to the generation of ultrafine microstructures is the development of high misorientations. The present work examines the effect of the crystallographic rotation field in simple shear upon the evolution of misorientation during plastic working. A series of Taylor simulations are presented and it is shown that the rotation field is such that small differences in orientation in the region of the main torsion texture components are considerably increased with the application of shear strain. This did not occur in simulations of rolling. The torsion simulations compare favourably with the nature of the misorientations evident in hot worked 1050 Al and Ti-IF steel. It is concluded that shear deformation, by its nature, facilitates the generation of higher misorientations.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2005, Japan Institute of Metals
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002640

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