Stress-relief annealing is an indispensable processing step for non-oriented electrical steel (NOES) sheets to achieve optimal magnetic properties. The annealing microstructure and texture are not only dependent on the annealing conditions, but also on the prior thermomechanical processing history. To investigate the effect of deformation mode on the recrystallization behavior, a NOES containing 0.9 wt% Si was cold rolled by skew rolling in which the hot-rolled-and-annealed plate was fed at 45° into the rolls to change both the initial texture and the deformation mode. The skew-cold-rolled sheets and those rolled by conventional and cross rolling were then annealed at different temperatures (650 to 1050 °C) for different times (0.5 to 30 min). The recrystallization behavior was characterized using electron backscatter diffraction (EBSD) techniques. It was found that the cold rolling deformation mode and the initial texture have a significant effect on the recrystallization behavior. The recrystallization rates of the skew- and cross- rolled sheets are higher than that of conventionally rolled steel if the annealing temperature is low (650 °C) or the annealing time is short (0.5 min). When the annealing temperature is relatively high (850 °C) and the annealing time is relatively long (2 min), the difference in recrystallization rate is small. In all the cases, skew rolling promotes the formation of the desired <001>//ND (normal direction) texture, and the unfavorable <111>//ND texture is essentially eliminated.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Recrystallization Behavior of Non-oriented Electrical Steel Sheets after Skew Cold Rolling


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    WCX SAE World Congress Experience ; 2023



    Publication date :

    2023-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Recrystallization Behavior of Non-oriented Electrical Steel Sheets after Skew Cold Rolling

    He, Youliang / Sanjari, Mehdi | British Library Conference Proceedings | 2023


    Recrystallization texture of Si-containing cold rolled high strength steel sheets

    Sudo, M. / Hashimoto, S. / Kanbe, S. | Tema Archive | 1980


    Effect of Edge Finish on Fatigue Behavior of Thin Non-oriented Electrical Steel Sheets

    Behravesh, Behzad / Saha, Dulal / Lamonaca, Gianni et al. | SAE Technical Papers | 2023


    Effect of Edge Finish on Fatigue Behavior of Thin Non-oriented Electrical Steel Sheets

    Gill, Gurmeet / Behravesh, Behzad / Saha, Dulal et al. | British Library Conference Proceedings | 2023


    125 years of skew rolling

    Online Contents | 2010