Influence of deformation conditions and texture on the high temperature flow stress of magnesium AZ31

Barnett, Matthew 2001, Influence of deformation conditions and texture on the high temperature flow stress of magnesium AZ31, Journal of light metals, vol. 1, no. 3, pp. 167-177.

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Title Influence of deformation conditions and texture on the high temperature flow stress of magnesium AZ31
Author(s) Barnett, Matthew
Journal name Journal of light metals
Volume number 1
Issue number 3
Start page 167
End page 177
Publisher Elsevier Science
Place of publication New York, N.Y.
Publication date 2001-08
ISSN 1471-5317
Summary The evolution of hot working flow stress with strain is examined in torsion, uniaxial compression and channel die compression. The flow stress was found to be strongly dependent on texture and deformation mode. At low strains this dependency accounted for a difference in flow stress of up to a factor of two. At higher strains the influence of texture and deformation mode was less marked. The stresses corresponding to an equivalent strain of 0.5 were modelled using a power law expression with an activation energy of 147 kJ/mol and a strain rate exponent of 0.15. The influence of texture and deformation mode on flow stress is rationalised in terms of the influence of prismatic slip, twinning and dynamic recrystallisation on deformation stress and structure.
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 ©2001, Elsevier Science
Persistent URL http://hdl.handle.net/10536/DRO/DU:30001292

Document type: Journal Article
Collection: School of Engineering and Technology
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