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Metal Science and Heat Treatment

, Volume 60, Issue 7–8, pp 511–515 | Cite as

Simulation of Reversal Magnetization Processes Caused by Difficulty of Detachment of Domain Wall in Uniaxial Highly Anisotropic Ferromagnets

  • A. S. Lileev
  • V. V. Pinkas
Article
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Processes of reversal magnetization in Sm(Co, Cu, Fe, Zr) 7.4-type alloys are simulated on the basis of the assumption that this process is determined by difficulty of detachment of domain walls from the places of their fixation. The behavior of the material is studied under magnetization after different methods of demagnetization, i.e., cyclic and thermal ones, and by a negative field. The obtained distributions of the fixing fields are used to plot minor loops for actual magnets. The computed and experimental data are compared.

Key words

permanent magnets simulation domain wall processes of reversal magnetization heat treatment magnetic properties coercivity “damage,” “restoration” 

References

  1. 1.
    A. S. Lileev, “Phenomenological theory of processes of reversal magnetization of permanent magnets from alloys of types SmCo5 and Nd2Fe14B,” Metalloved. Term. Obrab. Met., No. 10, 4 – 9 (1916).Google Scholar
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    V. N. Viktorov, A. S. Lileev, A. S. Perminov, et al., Software for Phenomenological Simulation of Processes of Reversal Magnetization in Highly Anisotropic Uniaxial Magnetic Materials, State Registry Certificate for Computers No. 20009612954, 29.04.2009 [in Russian].Google Scholar
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    A. S. Lileev, V. N. Viktorov, B. G. Razumeyko, et al., Software for Visualization of Results of Phenomenological Simulation of Processes of Reversal Magnetization in Highly Anisotropic Uniaxial Magnetic Materials, State Registry Certificate for Computers No. 2013610413.13.11.2012 [in Russian].Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.National Research Technological University “MISiS”MoscowRussia

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