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Influence of recrystallizing annealing on the properties of high-alloy isotropic steel with ultralow magnetic losses

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Abstract

A technology is developed for the production of highly alloyed (with up to 3% Si) isotropic electrical steel characterized by ultralow magnetic losses (P 1.5/50 ≤ 2.70 W/kg for strip of rated thickness 0.50 mm). The structure, texture, and magnetic and mechanical properties of vacuum-treated (<0.005% C) cold-rolled strip consisting of high-silicon steel (alloyed with >1% Al and >0.015% Sb) is investigated as a function of the heating rate and also the temperature and holding time in recrystallizing annealing. By refining the boundary conditions in the recrystallizing annealing of cold-rolled isotropic electrical steel, optimal grain size is obtained, and the pole densities of cubic orientations in the texture are increased. That reduces the magnetic losses.

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Authors and Affiliations

  1. Lipetsk State Technical University, Lipetsk, Russia

    A. E. Cheglov, A. K. Pogodaev & A. S. Bakhtin

  2. Baikov Institute of Metallurgy, Russian Academy of Sciences, Moscow, Russia

    V. S. Yusupov

  3. PAO NLMK, Lipetsk, Russia

    S. V. Bakhtin & D. V. Barybin

Authors
  1. A. E. Cheglov
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  2. A. K. Pogodaev
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  3. V. S. Yusupov
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  4. S. V. Bakhtin
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  5. D. V. Barybin
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  6. A. S. Bakhtin
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Corresponding author

Correspondence to S. V. Bakhtin.

Additional information

Original Russian Text © A.E. Cheglov, A.K. Pogodaev, V.S. Yusupov, S.V. Bakhtin, D.V. Barybin, A.S. Bakhtin, 2016, published in Stal’, 2016, No. 8, pp. 64–67.

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Cheglov, A.E., Pogodaev, A.K., Yusupov, V.S. et al. Influence of recrystallizing annealing on the properties of high-alloy isotropic steel with ultralow magnetic losses. Steel Transl. 46, 602–605 (2016). https://doi.org/10.3103/S0967091216080052

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  • DOI: https://doi.org/10.3103/S0967091216080052

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