barnett-mr-deformationmodesand-2009.pdf (902.53 kB)
Deformation modes and anisotropy in magnesium alloy AZ31
journal contribution
posted on 2009-01-01, 00:00 authored by B Hutchinson, Matthew BarnettMatthew Barnett, Alireza Ghaderi, Pavel CizekPavel Cizek, Ilchat SabirovA 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 researchVolume
100Issue
4Pagination
556 - 563Publisher
Carl Hanser Verlag GmbHLocation
Munich, GermanyPublisher DOI
ISSN
1862-5282Language
engNotes
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C1 Refereed article in a scholarly journalCopyright notice
2009, Carl Hanser Verlag GmbHUsage metrics
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