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

journal contribution
posted on 2001-08-01, 00:00 authored by Matthew BarnettMatthew Barnett
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.

History

Journal

Journal of light metals

Volume

1

Pagination

167-177

Location

New York, N.Y.

ISSN

1471-5317

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2001, Elsevier Science

Issue

3

Publisher

Elsevier Science

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