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Effect of annealing under tensile loading on the structure of nanocrystals in the Finemet alloy

  • Mechanical Properties, Physics of Strength, and Plasticity
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Abstract

The effect of nanocrystallization annealing under tensile loading on the structure of nanocrystals in the soft magnetic alloy Fe-Si-Nb-B-Cu (Finemet) has been investigated. It has been shown that the body-centered cubic (bcc) lattice of α-FeSi nanocrystals is extended along the direction of the application of the load upon annealing and is compressed in the transverse direction. Nanocrystals in the Finemet alloy have a higher degree of anisotropy of mechanical properties as compared to bulk crystals of α-FeSi, so that agreement between the measured and calculated values of the elongation is achieved only with a significant increase in the elastic moduli. Substantial changes in mechanical properties of the crystals with a decrease in their size to the nanometer scale are caused by the influence of the rigid amorphous matrix of the Fe(Nb)-B phase surrounding the nanocrystals.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, ul. Sofii Kovalevskoi 18, Yekaterinburg, 620990, Russia

    N. V. Ershov, V. A. Lukshina & A. P. Potapov

  2. B.P. Konstantinov Petersburg Nuclear Physics Institute, National Research Centre “Kurchatov Institute,” Orlova Roshcha, Gatchina, Leningrad oblast, 188300, Russia

    Yu. P. Chernenkov & V. I. Fedorov

Authors
  1. N. V. Ershov
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  2. Yu. P. Chernenkov
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  3. V. I. Fedorov
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  4. V. A. Lukshina
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  5. A. P. Potapov
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Correspondence to N. V. Ershov.

Additional information

Original Russian Text © N.V. Ershov, Yu.P. Chernenkov, V.I. Fedorov, V.A. Lukshina, A.P. Potapov, 2014, published in Fizika Tverdogo Tela, 2014, Vol. 56, No. 11, pp. 2146–2155.

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Ershov, N.V., Chernenkov, Y.P., Fedorov, V.I. et al. Effect of annealing under tensile loading on the structure of nanocrystals in the Finemet alloy. Phys. Solid State 56, 2217–2226 (2014). https://doi.org/10.1134/S1063783414110079

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  • DOI: https://doi.org/10.1134/S1063783414110079

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