Effect of particles on the formation of deformation twins in a magnesium-based alloy

Stanford, N. and Barnett, M.R. 2009, Effect of particles on the formation of deformation twins in a magnesium-based alloy, Materials science and engineering A: structural materials: properties, microstructures and processing, vol. 516, no. 1-2, pp. 226-234.

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Title Effect of particles on the formation of deformation twins in a magnesium-based alloy
Author(s) Stanford, N.
Barnett, M.R.
Journal name Materials science and engineering A: structural materials: properties, microstructures and processing
Volume number 516
Issue number 1-2
Start page 226
End page 234
Total pages 9
Publisher Elsevier
Place of publication Lausanne, Switzerland
Publication date 2009-08-15
ISSN 0921-5093
1873-4936
Keyword(s) magnesium alloys
precipitation
twinning
deformation
Summary The deformation behaviour of the age hardenable alloy Mg–5%Zn after different precipitation treatments has been examined. It has been found that during compressive deformation, fine particles increase the number of twins that form, but reduce the size and total volume fraction of twins. Visco-plastic selfconsistent modelling has been used to show that the presence of precipitates hardens the twin and prismatic slip systems more than the basal slip system. It is proposed that because the {10 ¯12} twin requires basal slip to accommodate the twinning shear, this twin type will always be hardened equal to, or more than, the basal slip system in response to precipitation.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861199 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2009, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30028404

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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