MAGNETIC PROPERTIES OF NITRIDES SM2FE17 COMPOUND AFTER SEVERE PLASTIC DEFORMATION BY TORSION AT 77K

1 Shchetinin Igor
Co-authors:
1 Bordyuzhin Igor 1 Menushenkov Vladimir 2 Sundeev Roman 1,3 Kamynin Anton 4 Verbetskii Viktor 1 Savchenko Alexander
Institutions:
1 National University of Science and Technology «MISiS», Moscow, Russia, ingvar@misis.ru
2 Moscow Technological University, «MIREA», Moscow, Russia
3 JSC “Spetsmagnit”, Moscow, Russia
4 Lomonosov Moscow State University, Moscow, Russia
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
816-820
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
31 views / 9 downloads
Abstract

Using X-ray diffraction analysis, scanning electron microscopy and magnetic properties analysis the Sm2Fe17 compound nitrides after severe plastic deformation by torsion at a temperature of 77K were studied. It was shown that severe plastic deformation led to the structure refinement without the formation of new phases. A decrease in grain size led to coercivity increase up to 235.2 kA/m/2.94 kOe and a residual magnetization increase up to 53 A×m2/kg.

Keywords: magnetic properties, nitride, intermetallic, permanent magnets, severe plastic deformation
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