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Fe- and co-based nanocrystalline soft magnetic alloys modified with Hf, Mo, and Zr: Magnetic properties, thermal stability, and structure. Alloys (Fe0.6Co0.4)86Hf7B6Cu1 and (Fe0.7Co0.3)88Hf7B4Cu1

The Physics of Metals and Metallography volume 114, pages 129–137 (2013)Cite this article

Abstract

Nanocrystalline alloys (Fe0.6Co0.4)86Hf7B6Cu1 and (Fe0.7Co0.3)88Hf7B4Cu1 have been investigated to obtain materials with improved thermal stability and new features. In order to make the alloys produced by melt quenching on a rotating wheel nanocrystalline, they have been subjected to heat (HT) and thermomechanical (TMechT) treatments. The effect of HT and TMechT conditions on the magnetic properties, thermal stability, and structure of the alloys has been studied. The optimal HT conditions for obtaining the minimum values of the coercive force (H c) in the alloys have been determined. It is shown that TMechT of the alloys leads to the induced longitudinal magnetic anisotropy with the axis of easy magnetization along the long side of the ribbon in the studied temperature range of 520–620°C. It has been established that the alloys (Fe0.6Co0.4)86Hf7B6Cu1 and (Fe0.7Co0.3)88Hf7B4Cu1 are thermally unstable at temperatures above 500°C.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch, ul. S. Kovalevskoi 18, Ekaterinburg, 620990, Russia

    N. V. Dmitrieva, V. A. Lukshina, E. G. Volkova, A. P. Potapov, V. S. Gaviko & B. N. Filippov

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  1. N. V. Dmitrieva
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  2. V. A. Lukshina
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  3. E. G. Volkova
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  4. A. P. Potapov
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  5. V. S. Gaviko
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  6. B. N. Filippov
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Correspondence to N. V. Dmitrieva.

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Original Russian Text © N.V. Dmitrieva, V.A. Lukshina, E.G. Volkova, A.P. Potapov, V.S. Gaviko, B.N. Filippov, 2013, published in Fizika Metallov i Metallovedenie, 2013, Vol. 114, No. 2, pp. 144–152.

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Dmitrieva, N.V., Lukshina, V.A., Volkova, E.G. et al. Fe- and co-based nanocrystalline soft magnetic alloys modified with Hf, Mo, and Zr: Magnetic properties, thermal stability, and structure. Alloys (Fe0.6Co0.4)86Hf7B6Cu1 and (Fe0.7Co0.3)88Hf7B4Cu1 . Phys. Metals Metallogr. 114, 129–137 (2013). https://doi.org/10.1134/S0031918X13020051

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  • DOI: https://doi.org/10.1134/S0031918X13020051

Keywords

  • Fe- and Co-based nanocrystalline alloys
  • magnetic properties
  • thermal stability
  • electron microscopy
  • X-ray diffraction
  • magnetic anisotropy