Microstructure evolution in hot worked and Annealed Magnesium Alloy AZ31

Beer, Aiden and Barnett, Matthew 2008, Microstructure evolution in hot worked and Annealed Magnesium Alloy AZ31, Materials science and engineering A: structural materials: properties, microstructures and processing, vol. 485, no. 1-2, pp. 318-324.

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Title Microstructure evolution in hot worked and Annealed Magnesium Alloy AZ31
Author(s) Beer, Aiden
Barnett, Matthew
Journal name Materials science and engineering A: structural materials: properties, microstructures and processing
Volume number 485
Issue number 1-2
Start page 318
End page 324
Total pages 7
Publisher Elsevier SA
Place of publication Amsterdam, Netherlands
Publication date 2008
ISSN 0921-5093
1873-4936
Keyword(s) magnesium alloys
kinetics
semiempirical method
quenching
strain rate
grain size
dynamical recrystallization
annealing
hot working
microstructure
Summary The present work examines the microstructure that evolves during the annealing of hot worked magnesium alloy AZ31. First, the influences of deformation and annealing conditions on the microstructures are assessed. It is found that the annealing behaviour is consistent with what one would expect for a recrystallization type reaction. Whilst both the deformation and annealing conditions influence the time required to reach a stable annealed microstructure, the grain size attained is governed solely by the prior deformation conditions employed. At the highest temperature and strain rate examined, the rate of recrystallization is quite high and the grain size was found to be approximately double when annealed for only 1 s prior to quenching. Finally, semi-empirical equations are developed to predict the kinetics of recrystallization, as well as the evolution of grain size, during annealing.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2008, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017108

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