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Dependence of characteristics of hysteresis loops on dislocation densities for low-alloy Cr-Mo steel

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Czechoslovak Journal of Physics B Aims and scope

Abstract

The microstructure of specimens of low-alloy Cr-Mo steel subjected to various heat treatments and various plastic deformations is studied by transmission electron microscopy. The observations indicate that the decisive factors which control the coercive forceH c, the initial permeabilityμ i and the Rayleigh constantα are the density and the arrangement of dislocations. The precipitates have only a secondary effect. The observed linear dependencesH c ∝ϱ 1/2,μ i ∝ϱ −1/2,α ∝ϱ −1 (ϱ —dislocation density) are in full agreement with the theoretical predictions.

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Authors and Affiliations

  1. Department of Metal Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16, Praha 2, Czechoslovakia

    J. Šternberk

  2. Department of Magnetism, Institute of Physics, Czechosl. Acad. Sci., Na Slovance 2, 180 40, Praha 8, Czechoslovakia

    E. Kratochvílová

  3. Iron and Steel Research Institute, VÚHŽ-Dobrá, 267 18, Karlštejn, Czechoslovakia

    A. Gemperle

  4. Iron and Steel Research Institute, VÚHŽ-Dobrá, 739 51, Dobrá u Frýdku-Místku, Czechoslovakia

    V. Faja & V. Walder

Authors
  1. J. Šternberk
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  2. E. Kratochvílová
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  3. A. Gemperle
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  4. V. Faja
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  5. V. Walder
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Dedicated to Academician Vladimír Hajko on the occasion of his 65th birthday.

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Šternberk, J., Kratochvílová, E., Gemperle, A. et al. Dependence of characteristics of hysteresis loops on dislocation densities for low-alloy Cr-Mo steel. Czech J Phys 35, 1259–1266 (1985). https://doi.org/10.1007/BF01597011

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  • DOI: https://doi.org/10.1007/BF01597011

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