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<p>The development of thin electrical steel sheets with improved magnetic properties requires a good understanding of the effects of temper rolling and final annealing on the microstructure and magnetic properties. The effects of these processes are affected by the microstructural characteristics of the hot-rolled material. In this work, the microstructure of hot-rolled Fe-2%Si electrical steel was modified by hot-band annealing, to further investigate the effect of temper rolling and final annealing on the microstructure and magnetic properties. Hysteresis loops and magnetic properties were evaluated at 1.5&#xa0;T, 60&#xa0;Hz. In addition, the contribution of hysteresis and eddy current losses to the total core losses was evaluated at 1.5&#xa0;T, from 10 to 200&#xa0;Hz. Results show that magnetic properties of modified samples are better than those of unmodified samples, opening the possibility to use them in applications that require high speed or low core losses, for example, in motors and generators.</p> Graphical abstract <p></p>

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Effect of hot-band annealing and temper rolling on the microstructure and magnetic performance of Fe-2%Si electrical steels

  • 期刊论文

  • 发表日期：

    2026年2月3日

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  • K. Ojeda,
  • F. Hernández,
  • A. Salinas,
  • R. Deaquino,
  • L. Guerra,
  • A. Bedolla,
  • F. Botello,
  • E. J. Gutiérrez

摘要

The development of thin electrical steel sheets with improved magnetic properties requires a good understanding of the effects of temper rolling and final annealing on the microstructure and magnetic properties. The effects of these processes are affected by the microstructural characteristics of the hot-rolled material. In this work, the microstructure of hot-rolled Fe-2%Si electrical steel was modified by hot-band annealing, to further investigate the effect of temper rolling and final annealing on the microstructure and magnetic properties. Hysteresis loops and magnetic properties were evaluated at 1.5 T, 60 Hz. In addition, the contribution of hysteresis and eddy current losses to the total core losses was evaluated at 1.5 T, from 10 to 200 Hz. Results show that magnetic properties of modified samples are better than those of unmodified samples, opening the possibility to use them in applications that require high speed or low core losses, for example, in motors and generators.

Graphical abstract