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Control of the Properties of Sm – Fe – Co – Cu – Zr Magnets by the Method of Mixtures of Powders

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Metal Science and Heat Treatment Aims and scope

The effect of the chemical composition of the alloys on the magnetic properties of sintered Sm – Co – Fe – Cu – Zr magnets produced with mixing of alloy powders is studied. Elevation of (BH )max of Sm – Co – Fe – Cu – Zr magnets due to increase of the concentration of Fe to 20 wt.% requires observation of a strict proportion of the components and precision choice of the modes of heat treatment. Optimization of the chemical composition and use of step annealing with reduction of the temperature from 700 to 400°C has given sintered magnets with the following properties: Br = 11.7 – 11.9 kGs, HcB = 9 – 10 kOe, HcJ = 15 – 20 kOe, and (BH )max = 29 – 31 MGs · Oe.

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Notes

  1. Here and below in the paper the content of elements is given in weight percent.

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The work has been performed with financial support of project RFFI-BRICS No. 17-52-80072.

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Authors and Affiliations

  1. Ural Electromechanical Plant, Ekaterinburg, Russia

    D. Yu. Vasilenko, D. Yu. Bratushev & A. V. Shitov

  2. M. N. Mikheev Institute for Metals Physics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia

    A. G. Popov & D. A. Kolodkin

  3. Institute of Natural Sciences and Mathematics of the Ural Federal University, Ekaterinburg, Russia

    A. G. Popov

Authors
  1. D. Yu. Vasilenko
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  2. D. Yu. Bratushev
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  3. A. V. Shitov
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  4. A. G. Popov
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  5. D. A. Kolodkin
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Corresponding author

Correspondence to D. A. Kolodkin.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 20 – 25, September, 2020.

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Vasilenko, D.Y., Bratushev, D.Y., Shitov, A.V. et al. Control of the Properties of Sm – Fe – Co – Cu – Zr Magnets by the Method of Mixtures of Powders. Met Sci Heat Treat 62, 560–565 (2021). https://doi.org/10.1007/s11041-021-00603-x

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  • DOI: https://doi.org/10.1007/s11041-021-00603-x

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