Microstructure and Microhardness Evolution of Mg–8Al–1Zn Magnesium Alloy Processed by Differential Speed Rolling at Elevated Temperatures
Abstract
:1. Introduction
2. Experimental Material and Procedure
3. Results and Discussion
3.1. Microstructural Evolution
3.2. Mechanical Behaviour Evolution
4. Conclusions
- A commercial Mg–8Al–1Zn magnesium alloy was successfully processed by differential speed rolling at elevated temperatures of 400 and 450 °C without any significant grain growth at these rolling temperatures for a reduction percentage of 30% and 70%.
- Considerable twinning was observed in DSRolled alloy with no grain growth nor dynamic recrystallization indicating that twin deformation is the dominant deformation mechanism in addition to slip mechanism.
- The DSRolled alloy showed significant elongation in terms of shear displacements at testing temperatures of 400 and 450 °C.
- The existence of twins and the distribution of fine particles of β-phase (Mg17Al12) played important roles in the behavior of DSRolled alloy under the hot shear deformation. These two factors inhibit the significant grain growth, improve the strain hardening and improve the alloy flow under the hot deformation conditions.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Alsubaie, S.A.; Al-Zubaydi, A.S.J.; Hussein, E.A.; Alawadhi, M.Y. Microstructure and Microhardness Evolution of Mg–8Al–1Zn Magnesium Alloy Processed by Differential Speed Rolling at Elevated Temperatures. Materials 2024, 17, 4072. https://doi.org/10.3390/ma17164072
Alsubaie SA, Al-Zubaydi ASJ, Hussein EA, Alawadhi MY. Microstructure and Microhardness Evolution of Mg–8Al–1Zn Magnesium Alloy Processed by Differential Speed Rolling at Elevated Temperatures. Materials. 2024; 17(16):4072. https://doi.org/10.3390/ma17164072
Chicago/Turabian StyleAlsubaie, Saad A., Ahmed S. J. Al-Zubaydi, Emad A. Hussein, and Meshal Y. Alawadhi. 2024. "Microstructure and Microhardness Evolution of Mg–8Al–1Zn Magnesium Alloy Processed by Differential Speed Rolling at Elevated Temperatures" Materials 17, no. 16: 4072. https://doi.org/10.3390/ma17164072