Deformation modes and anisotropy in magnesium alloy AZ31
Hutchinson, Bevis, Barnett, Matthew R., Ghaderi, Alireza, Cizek, Pavel and Sabirov, Ilchat 2009, Deformation modes and anisotropy in magnesium alloy AZ31, International journal of materials research, vol. 100, no. 4, pp. 556-563.
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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.
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Field of Research
091207 Metals and Alloy Materials
Socio Economic Objective
861199 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified
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