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

Recrystallization in an Mg-Nd alloy processed by high-pressure torsion: a calorimetric analysis
Recrystallization in an Mg-Nd alloy processed by high-pressure torsion: a calorimetric analysis
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.
Activation energy, Differential Scanning Calorimetry, HPT, High-pressure torsion, Mg-Nd alloy, Recrystallization
2238-7854
3047-3054
Bourezg, Yousf Islem
aab04bbc-d0f1-4ef4-8bef-2471dbbca4f0
Azzeddine, Hiba
f32633f8-2f8a-433e-9180-ada2b8704eae
Abib, Khadidja
9cba6ab2-87e6-449f-88c1-2ee212117066
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Bradai, Djamel
59c22bbc-952f-4ab9-8619-8d63d6ee8a19
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Bourezg, Yousf Islem
aab04bbc-d0f1-4ef4-8bef-2471dbbca4f0
Azzeddine, Hiba
f32633f8-2f8a-433e-9180-ada2b8704eae
Abib, Khadidja
9cba6ab2-87e6-449f-88c1-2ee212117066
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Bradai, Djamel
59c22bbc-952f-4ab9-8619-8d63d6ee8a19
Langdon, Terence G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Bourezg, Yousf Islem, Azzeddine, Hiba, Abib, Khadidja, Huang, Yi, Bradai, Djamel and Langdon, Terence 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. (doi:10.1016/j.jmrt.2020.01.035).

Record type: Article

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.

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Bourezg et al_revised - Accepted Manuscript
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Accepted/In Press date: 9 January 2020
e-pub ahead of print date: 21 January 2020
Keywords: Activation energy, Differential Scanning Calorimetry, HPT, High-pressure torsion, Mg-Nd alloy, Recrystallization

Identifiers

Local EPrints ID: 437052
URI: http://eprints.soton.ac.uk/id/eprint/437052
ISSN: 2238-7854
PURE UUID: 1ea9a087-cd9c-4504-82a4-268879050569
ORCID for Yi Huang: ORCID iD orcid.org/0000-0001-9259-8123
ORCID for Terence G Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 16 Jan 2020 17:30
Last modified: 26 Nov 2021 02:57

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Contributors

Author: Yousf Islem Bourezg
Author: Hiba Azzeddine
Author: Khadidja Abib
Author: Yi Huang ORCID iD
Author: Djamel Bradai

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