The Impact of Severe Plastic Deformation on the Microstructure and Physicomechanical Properties of Al–0.4Zr

A. M. Mavlyutov, T. A. Latynina, M. Yu Murashkin, R. Z. Valiev, T. S. Orlova

Research outputpeer-review

Abstract

Abstract: The influence of high pressure torsion on the microstructure and mechanical and electrical properties is elucidated for an Al–0.4Zr alloy pre-annealed at 648 K for 60 h. The transmission electron microscopy has revealed that the annealing causes the dispersive release of nanoparticles of a secondary Al 3 Zr phase. The formation of this structure in the alloy ensures an increase in its conductivity from 50.7 to 58.8% IACS owing to a decrease in the Zr concentration in a solid solution. As established, high pressure torsion processing at room temperature of the pre-annealed alloy leads to the formation of a uniform ultrafine structure in them, as well as to the partial dissolution of Al 3 Zr nanoparticles, resulting in higher strength and lower conductivity. It is shown that additional annealing of the ultrafine grained alloy for 1 h at 503 K results in a strength increase by 20% and the recovery of conductivity to the annealed state level (58.3% IACS).

Original languageEnglish
Pages (from-to)5-11
Number of pages7
JournalInorganic Materials: Applied Research
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

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title = "The Impact of Severe Plastic Deformation on the Microstructure and Physicomechanical Properties of Al–0.4Zr",
abstract = "Abstract: The influence of high pressure torsion on the microstructure and mechanical and electrical properties is elucidated for an Al–0.4Zr alloy pre-annealed at 648 K for 60 h. The transmission electron microscopy has revealed that the annealing causes the dispersive release of nanoparticles of a secondary Al 3 Zr phase. The formation of this structure in the alloy ensures an increase in its conductivity from 50.7 to 58.8{\%} IACS owing to a decrease in the Zr concentration in a solid solution. As established, high pressure torsion processing at room temperature of the pre-annealed alloy leads to the formation of a uniform ultrafine structure in them, as well as to the partial dissolution of Al 3 Zr nanoparticles, resulting in higher strength and lower conductivity. It is shown that additional annealing of the ultrafine grained alloy for 1 h at 503 K results in a strength increase by 20{\%} and the recovery of conductivity to the annealed state level (58.3{\%} IACS).",
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The Impact of Severe Plastic Deformation on the Microstructure and Physicomechanical Properties of Al–0.4Zr. / Mavlyutov, A. M.; Latynina, T. A.; Murashkin, M. Yu; Valiev, R. Z.; Orlova, T. S.

In: Inorganic Materials: Applied Research, Vol. 10, No. 1, 01.01.2019, p. 5-11.

Research outputpeer-review

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AU - Mavlyutov, A. M.

AU - Latynina, T. A.

AU - Murashkin, M. Yu

AU - Valiev, R. Z.

AU - Orlova, T. S.

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N2 - Abstract: The influence of high pressure torsion on the microstructure and mechanical and electrical properties is elucidated for an Al–0.4Zr alloy pre-annealed at 648 K for 60 h. The transmission electron microscopy has revealed that the annealing causes the dispersive release of nanoparticles of a secondary Al 3 Zr phase. The formation of this structure in the alloy ensures an increase in its conductivity from 50.7 to 58.8% IACS owing to a decrease in the Zr concentration in a solid solution. As established, high pressure torsion processing at room temperature of the pre-annealed alloy leads to the formation of a uniform ultrafine structure in them, as well as to the partial dissolution of Al 3 Zr nanoparticles, resulting in higher strength and lower conductivity. It is shown that additional annealing of the ultrafine grained alloy for 1 h at 503 K results in a strength increase by 20% and the recovery of conductivity to the annealed state level (58.3% IACS).

AB - Abstract: The influence of high pressure torsion on the microstructure and mechanical and electrical properties is elucidated for an Al–0.4Zr alloy pre-annealed at 648 K for 60 h. The transmission electron microscopy has revealed that the annealing causes the dispersive release of nanoparticles of a secondary Al 3 Zr phase. The formation of this structure in the alloy ensures an increase in its conductivity from 50.7 to 58.8% IACS owing to a decrease in the Zr concentration in a solid solution. As established, high pressure torsion processing at room temperature of the pre-annealed alloy leads to the formation of a uniform ultrafine structure in them, as well as to the partial dissolution of Al 3 Zr nanoparticles, resulting in higher strength and lower conductivity. It is shown that additional annealing of the ultrafine grained alloy for 1 h at 503 K results in a strength increase by 20% and the recovery of conductivity to the annealed state level (58.3% IACS).

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