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Deformation modes and anisotropy in magnesium alloy AZ31

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journal contribution
posted on 2009-01-01, 00:00 authored by B Hutchinson, Matthew BarnettMatthew Barnett, Alireza Ghaderi, Pavel CizekPavel Cizek, Ilchat Sabirov
A strongly textured sheet of magnesium alloy AZ31 has been subjected to tensile testing at temperatures between ambient and 300°C. Structures have been examined by optical and transmission electron microscopy and also by atomic force microscopy to quantify surface displacements seen at grain boundaries. Plastic anisotropy varies strongly with test temperature as was observed previously by Agnew and Duygulu. The present findings do not support the view that crystallographic <c + a> becomes a major contributor to deformation at higher temperatures. Rather, the material behaviour reflects an increasing contribution from grain boundary sliding despite the relatively high strain rate (I 0-3 s-1) used in the mechanical tests.

History

Journal

International journal of materials research

Volume

100

Pagination

556 - 563

Location

Munich, Germany

Open access

  • Yes

ISSN

1862-5282

Language

eng

Notes

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Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2009, Carl Hanser Verlag GmbH

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