Primary recrystallization of a magnesium hybrid material fabricated by high-pressure torsion
Authors: Ould Mohamed, O., Bazarnik, P., Huang, Y., Azzeddine, H., Baudin, T., Brisset, F., Kawasaki, M. and Langdon, T.G.
Journal: Materials Today Communications
Volume: 38
eISSN: 2352-4928
DOI: 10.1016/j.mtcomm.2024.108305
Abstract:The static recrystallization and grain growth of a hybrid AZ31/Mg-0.6Gd (wt%) material fabricated by high-pressure torsion (HPT) through 20 turns were explored after isochronal annealing at 150, 250, 350 and 450 °C for 1 h using electron backscatter diffraction, transmission electron microscopy and Vickers microhardness measurements. The results reveal heterogeneity in the grain size distributions of the AZ31 and Mg-0.6Gd regions after annealing at the lower temperatures of 150 and 250 °C leading to a clear AZ31/Mg-0.6Gd interfacial border. At the higher temperatures of 350 and 450 °C the AZ31/Mg-0.6Gd interfaces were not well-defined owing to the occurrence of grain growth. It is shown that grain growth is restricted in the AZ31 and Mg-0.6Gd regions due to the presence of stable nano-size Al8Mn5 particles and the precipitation of Mg17Al12 and Mg12Zn at 250 °C and of Mg5Gd and Mg12Gd phases at 350 and 450 °C. The distribution of the basal texture in both regions was strongly controlled by dynamic recrystallization, precipitation and grain growth. The values of the microhardness over the radial cross-sections of the hybrid discs decrease and become more uniform, in the range of ∼35–66 Hv, with increasing annealing temperature.
https://eprints.bournemouth.ac.uk/39474/
Source: Scopus
Primary recrystallization of a magnesium hybrid material fabricated by high-pressure torsion
Authors: Mohamed, O.O., Bazarnik, P., Huang, Y., Azzeddine, H., Baudin, T., Brisset, F., Kawasaki, M. and Langdon, T.G.
Journal: MATERIALS TODAY COMMUNICATIONS
Volume: 38
eISSN: 2352-4928
DOI: 10.1016/j.mtcomm.2024.108305
https://eprints.bournemouth.ac.uk/39474/
Source: Web of Science (Lite)
Primary recrystallization of a magnesium hybrid material fabricated by high-pressure torsion
Authors: Mohamed, O.O., Bazarnik, P., Huang, Y., Azzeddine, H., Baudin, T., Brisset, F., Kawasaki, M. and Langdon, T.G.
Journal: Materials Today Communications
Volume: 38
Pages: 108305(1)-108305(10)
Publisher: Elsevier
ISSN: 2352-4928
DOI: 10.1016/j.mtcomm.2024.108305
Abstract:The static recrystallization and grain growth of a hybrid AZ31/Mg-0.6Gd (wt.%) material fabricated by high-pressure torsion (HPT) through 20 turns were explored after isochronal annealing at 150, 250, 350 and 450 °C for 1 h using electron backscatter diffraction, transmission electron microscopy and Vickers microhardness measurements. The results reveal heterogeneity in the grain size distributions of the AZ31 and Mg-0.6Gd regions after annealing at the lower temperatures of 150 and 250 °C leading to a clear AZ31/Mg-0.6Gd interfacial border. At the higher temperatures of 350 and 450 °C the AZ31/Mg-0.6Gd interfaces were not well-defined owing to the occurrence of grain growth. It is shown that grain growth is restricted in the AZ31 and Mg-0.6Gd regions due to the presence of stable nano-size Al8Mn5 particles and the precipitation of Mg17Al12 and Mg12Zn at 250 °C and of Mg5Gd and Mg12Gd phases at 350 and 450 °C. The distribution of the basal texture in both regions was strongly controlled by dynamic recrystallization, precipitation and grain growth. The values of the microhardness over the radial cross-sections of the hybrid discs decrease and become more uniform, in the range of ~35–66 Hv, with increasing annealing temperature.
https://eprints.bournemouth.ac.uk/39474/
Source: Manual
Preferred by: Yi Huang
Primary recrystallization of a magnesium hybrid material fabricated by high-pressure torsion
Authors: Mohamed, O.O., Bazarnik, P., Huang, Y., Azzeddine, H., Baudin, T., Brisset, F., Kawasaki, M. and Langdon, T.G.
Journal: Materials Today Communications
Publisher: Elsevier
ISSN: 2352-4928
Abstract:The static recrystallization and grain growth of a hybrid AZ31/Mg-0.6Gd (wt.%) material fabricated by high-pressure torsion (HPT) through 20 turns were explored after isochronal annealing at 150, 250, 350 and 450 °C for 1 h using electron backscatter diffraction, transmission electron microscopy and Vickers microhardness measurements. The results reveal heterogeneity in the grain size distributions of the AZ31 and Mg-0.6Gd regions after annealing at the lower temperatures of 150 and 250 °C leading to a clear AZ31/Mg-0.6Gd interfacial border. At the higher temperatures of 350 and 450 °C the AZ31/Mg-0.6Gd interfaces were not well-defined owing to the occurrence of grain growth. It is shown that grain growth is restricted in the AZ31 and Mg-0.6Gd regions due to the presence of stable nano-size Al8Mn5 particles and the precipitation of Mg17Al12 and Mg12Zn at 250 °C and of Mg5Gd and Mg12Gd phases at 350 and 450 °C. The distribution of the basal texture in both regions was strongly controlled by dynamic recrystallization, precipitation and grain growth. The values of the microhardness over the radial cross-sections of the hybrid discs decrease and become more uniform, in the range of ~35–66 Hv, with increasing annealing temperature.
https://eprints.bournemouth.ac.uk/39474/
Source: BURO EPrints