Structure, phase composition and properties of amorphous soft magnetic Fe–Co–Si–B–P tapes

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Abstract

The analysis of structural and phase states, mechanical and magnetic properties of amorphous FeCoBSi and FeCoBSiP alloys obtained by spinning is performed. The distribution of the elemental composition is traced and the alloy stratification by silicon and boron is noted. It is shown that the experimentally determined values of saturation induction (1.7–1.8 T) and coercive force (18–20 A/m) are practically independent of changes in the composition of the tapes in the studied range of element content. The values of ultimate strength (~162 MPa) and elongation before failure (~0.23%) indicate low plasticity of the studied tapes. However, the value of the elastic modulus was high at 81.5 MPa.

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About the authors

A. P. Semin

Siberian State Industrial University

Author for correspondence.
Email: syomin53@bk.com
Russian Federation, Novokuznetsk

V. E. Gromov

Siberian State Industrial University

Email: gromov@physics.sibsiu.ru
Russian Federation, Novokuznetsk

Yu. F. Ivanov

Institute of High-Current Electronics, Siberian Branch of the Russian Academy of Sciences

Email: yufi55@mail.ru
Russian Federation, Tomsk

S. V. Panin

Institute of Strength Physics and Materials Science

Email: paninsergey71@mail.ru
Russian Federation, Tomsk

P. S. Mogilnikov

Central Research Institute of Ferrous Metallurgy named after I.P. Bardin

Email: pavel_mog@mail.ru
Russian Federation, Moscow

I. Yu. Litovchenko

Institute of Strength Physics and Materials Science

Email: litovchenko@spti.tsu.ru
Russian Federation, Tomsk

I. D. Selivanov

Siberian State Industrial University

Email: ilyselivanov@mail.ru
Russian Federation, Novokuznetsk

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Supplementary files

Supplementary Files
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2. Fig. 1. DSC thermograms of samples (FeCo)82B13Si5 (a) and (FeCo)82B12Si4P2 (b).

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3. Fig. 2. Electron microscopic image of the structure of the tape subjected to etching: a, b – alloy (FeCo)82B13Si5; c, d – alloy (FeCo)82B12Si4P2.

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4. Fig. 3. Electron diffraction patterns of (FeCo)82B13Si5 (a) and (FeCo)82B12Si4P2 (b) alloy tapes.

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5. Fig. 4. Electron microscopic image of the structure of the tape subjected to electrolytic thinning (a, b) and thinning by a flow of argon ions (c, d): a, c – bright fields; b, d – corresponding microelectron diffraction patterns.

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