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Recrystallization in an Mg-Nd alloy processed by high-pressure torsion: a calorimetric analysis.

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Bourezg, Y.I., Azzeddine, H., Abib, K., Huang, Y., Bradai, D. and Langdon, T.G., 2020. Recrystallization in an Mg-Nd alloy processed by high-pressure torsion: a calorimetric analysis. Journal of Materials Research and Technology, 9 (3), 3047-3054.

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DOI: 10.1016/j.jmrt.2020.01.035

Abstract

Differential scanning calorimetry (DSC) was used to evaluate the recrystallization temperature and activation energy for an Mg-1.43Nd (wt.%) alloy after severe plastic deformation by high-pressure torsion (HPT) at room temperature up to 10 turns. The recrystallization kinetics were determined from DSC analysis. The results show that the recrystallization temperature increases with increasing heating rate and decreases with increasing numbers of HPT turns. Severe plastic deformation by HPT significantly reduces the recrystallization temperature. The estimated activation energy for recrystallization was in the range of ~ 84-89 kJ mol-1.

Item Type:Article
ISSN:2238-7854
Uncontrolled Keywords:Activation energy; Differential scanning calorimetry; High-pressure torsion; Mg-Nd alloy; Recrystallization.
Group:Faculty of Science & Technology
ID Code:33220
Deposited By: Symplectic RT2
Deposited On:13 Jan 2020 11:25
Last Modified:14 Mar 2022 14:19

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