Deformation Microstructures of Mg-3Al-1Zn Magnesium Alloy Compressed Over Wide Regions of Temperature and Strain Rate

Hot compression tests of Mg-3Al-1Zn magnesium alloy were performed at temperatures between 300-500 °C and strain rates between 0.03 and 90 s −1 . Dynamic recrystallization of the alloy is developed by the necklace mechanism. At the temperature of 300 °C, structures are fully dynamic recrystallized e...

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Bibliographic Details
Published in:Journal of materials engineering and performance 2011-02, Vol.20 (1), p.133-138
Main Authors: Zhou, Jia, Li, Luo-xing, Liu, Bo, Liu, Yang-sheng
Format: Article
Language:English
Subjects:
Alloy development
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and Coatings
Deformation
Dynamic recrystallization
Engineering Design
Grain size
Hot pressing
Magnesium base alloys
Materials engineering
Materials Science
Quality Control
Reliability
Safety and Risk
Strain rate
Tribology
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Summary:Hot compression tests of Mg-3Al-1Zn magnesium alloy were performed at temperatures between 300-500 °C and strain rates between 0.03 and 90 s −1 . Dynamic recrystallization of the alloy is developed by the necklace mechanism. At the temperature of 300 °C, structures are fully dynamic recrystallized except at intermediate strain rates. As temperature rises to 400 °C, structures are fully recrystallized at all strain rates. The abnormal grain size increase at high strain rate is attributed to the temperature rising of the deforming sample.
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-010-9646-9