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DAPO effect in Fe23B6

  • Structure, Phase Transformations, and Diffusion
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Abstract

The potential of the extended local atomic displacement approximation (ELADA) is investigated in application to the description of the mechanism of the effect of the diverse atomic position occupancy (DAPO effect), which manifests itself in the “absorption and precipitation” of α-Fe in Fe23B6 without a change in the temperature of the magnetic transformation T C of the phase in the process of compacting of powders and subsequent annealing of the compacts at T ≥ 325 K, respectively. It is shown that the nature of the observed effect is determined by the localization of Fe(4a) atoms in the crystallographic positions Fe(4b) of the fcc unit cell of the metastable Fe23B6 phase (diverse atomic position occupancy (DAPO)).

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Authors and Affiliations

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

    V. A. Barinov & V. A. Tsurin

  2. Institute of Solid-State Chemistry, Ural Branch, Russian Academy of Sciences, ul. Pervomaiskaya 91, Ekaterinburg, 620041, Russia

    V. T. Surikov

Authors
  1. V. A. Barinov
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  2. V. A. Tsurin
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  3. V. T. Surikov
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Additional information

Original Russian Text © V.A. Barinov, V.A. Tsurin, V.T. Surikov, 2012, published in Fizika Metallov i Metallovedenie, 2012, Vol. 113, No. 1, pp. 52–65.

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Barinov, V.A., Tsurin, V.A. & Surikov, V.T. DAPO effect in Fe23B6 . Phys. Metals Metallogr. 113, 48–61 (2012). https://doi.org/10.1134/S0031918X12010024

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  • DOI: https://doi.org/10.1134/S0031918X12010024

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