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Founded in 1987， Bimonthly
Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 11 Issue 3
Jun.  2020
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YANG Jingfu, ZHANG Yinghui, QIN Jing, ZHOU Qingyao, ZHAO Haibin, NIE Jincheng, XU Xingxing. Effect of final thickness on the microstructure, texture and magnetic properties of high-grade non-oriented electrical steel sheets[J]. Nonferrous Metals Science and Engineering, 2020, 11(3): 73-79. DOI: 10.13264/j.cnki.ysjskx.2020.03.010
Citation: YANG Jingfu, ZHANG Yinghui, QIN Jing, ZHOU Qingyao, ZHAO Haibin, NIE Jincheng, XU Xingxing. Effect of final thickness on the microstructure, texture and magnetic properties of high-grade non-oriented electrical steel sheets[J]. Nonferrous Metals Science and Engineering, 2020, 11(3): 73-79. DOI: 10.13264/j.cnki.ysjskx.2020.03.010
shu

Effect of final thickness on the microstructure, texture and magnetic properties of high-grade non-oriented electrical steel sheets

  • Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China

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  • Received Date: December 05, 2019
  • Published Date: June 29, 2020
    Graphical Abstract
    • Abstract
  • The high-grade non-oriented electrical steel normalized sheets from an enterprise was cold rolled with different cold rolling reduction ratios and annealed at high temperature to obtain final sheets at different thicknesses. Final thickness on microstructure, texture and magnetic properties were studied by means of EBSD. The results showed that the total iron losses continued decreasing as the thickness of final sheets decreased, especially at high frequencies, the underlying reason of which was that eddy current losses dominated at high frequencies, and at the same time its proportion to total iron losses decreased continuously as the thickness of final sheets decreased. The average grain size decreased slightly and the microstructure uniformity deteriorated with the thickness reduction of final sheets. Given that the reduction of eddy current losses caused by thickness reduction still dominated, the total iron losses decreased. With the increase of cold rolling reduction ratio, the γ texture and α* texture were continuously enhanced while the λ texture was weakened. The volume fraction ratio of the favorable texture to the harmful texture continued declining, leading to the decrease of magnetic flux density B50.
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    • References (21)
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