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Effect of a Pulsed Magnetic Field on the Heterodiffusion of Sn in α-Fe in the Paramagnetic Temperature Range

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Abstract

The effect of a pulsed magnetic field on the bulk diffusion coefficient of Sn in α-Fe is experimentally studied in the range of magnetic-field strengths 79.6–398.0 kА m–1, in the frequency range 1–21 Hz at temperatures of 790 and 830°C. Using X-ray diffraction analysis, a pulsed magnetic field is found to have a considerable effect on the diffusion coefficient of Sn in α-Fe at 790°C. The observed behavior of the frequency dependence of the diffusion coefficient has a pronounced “resonance” character. The degree of influence of the magnetostriction constant of α-Fe in the paramagnetic region on additional mass transfer under the influence of a magnetic field is discussed. Theoretical justification is given for the assumption that the resonant behavior of the diffusion coefficient is related to the phenomenon of dislocation trapping by the Cottrell atmosphere under the action of a pulsed magnetic field. The significant role of the interaction of elastic fields of defect complexes with the fields of magnetostrictive stresses α-Fe is noted.

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Authors and Affiliations

  1. Samara National Research University, 443086, Samara, Russia

    A. A. Fedotov, S. V. Voronin & A. V. Pokoev

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  1. A. A. Fedotov
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  2. S. V. Voronin
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  3. A. V. Pokoev
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Correspondence to A. A. Fedotov or S. V. Voronin.

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Fedotov, A.A., Voronin, S.V. & Pokoev, A.V. Effect of a Pulsed Magnetic Field on the Heterodiffusion of Sn in α-Fe in the Paramagnetic Temperature Range. J. Surf. Investig. 17, 1116–1119 (2023). https://doi.org/10.1134/S1027451023050178

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