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Generating misorientations in shear deformation structures
journal contribution
posted on 2004-01-01, 00:00 authored by Matthew BarnettMatthew Barnett, X Ma, A OudinOf 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.
History
Journal
Materials transactions (JIM)Volume
45Issue
7Pagination
2151 - 2156Publisher
Japan Institute of MetalsLocation
Sendai, JapanISSN
1345-9678eISSN
1347-5320Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2005, Japan Institute of MetalsUsage metrics
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