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Russian Metallurgy (Metally)

, Volume 2019, Issue 10, pp 994–1001 | Cite as

Amorphous-Alloy-Based Composites Prepared by High-Pressure Torsion

  • I. E. PermyakovaEmail author
  • E. N. Blinova
  • I. V. Shchetinin
  • E. S. Savchenko
ADVANCED MATERIALS AND TECHNOLOGIES

Abstract—Deformation-induced composites consisting of alternating layers of amorphous Fe–Ni–B and Co–Fe–Cr–Si–B alloys are prepared by consolidation via high-pressure torsion in a Bridgman chamber. The sequence of changing structural states of the composites and their individual components upon severe plastic deformation and variations of the Vickers hardness and magnetic characteristics are studied in accordance with the degree of deformation. It is found that the use of high-pressure torsion at a high strain efficiently favors the transition of the materials from an amorphous into a nanocrystalline state, increases their microhardness, and retains soft magnetic properties.

Keywords: composite material amorphous alloy severe plastic deformation high-pressure torsion nanocrystal 

Notes

ACKNOWLEDGMENTS

We thank T.R. Chueva and N.V. Umnova (IMET RAN) for their assistance in performing the DSC analysis.

FUNDING

This study was supported by the Russian Foundation for Basic Research, project no. 17-02-00402_a. The study of magnetic properties was supported by the Russian Scientific Foundation, project no. 14-12-00170.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • I. E. Permyakova
    • 1
    Email author
  • E. N. Blinova
    • 1
  • I. V. Shchetinin
    • 2
  • E. S. Savchenko
    • 2
  1. 1.Bardin Central Research Institute of Ferrous MetallurgyMoscowRussia
  2. 2.National University of Science and Technology MISiSMoscowRussia

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