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Necking and failure at low strains in a coarse-grained wrought Mg alloy

Barnett, M., Jacob, S., Gerard, B. and Mullins, J. 2008, Necking and failure at low strains in a coarse-grained wrought Mg alloy, Scripta materialia, vol. 59, no. 10, pp. 1035-1038.


Title Necking and failure at low strains in a coarse-grained wrought Mg alloy
Author(s) Barnett, M.
Jacob, S.
Gerard, B.
Mullins, J.
Journal name Scripta materialia
Volume number 59
Issue number 10
Start page 1035
End page 1038
Publisher Pergamon
Place of publication Oxford, England
Publication date 2008-11
ISSN 1359-6462
1872-8456
Keyword(s) magnesium
twinning
localized deformation
ductility
rolling
Summary Tensile testing of rolled AZ31 alloy with a mean grain size of 80 μm reveals localization and failure prior to diffuse necking. Optical microscopy reveals that failure is caused by voids that have formed within twins. A simple localization criterion is proposed that captures the role of grain size in the effect. Such early failure is only predicted for coarse grain sizes, in line with observation.
Language eng
Field of Research 091207 Metals and Alloy Materials
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2008, Acta Materialia Inc
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017239

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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Created: Fri, 14 Aug 2009, 13:51:12 EST