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Segregation Control and Dendritic Structure Improvement of Steel Plate Hot Rolled Commercial Steel by Electromagnetic Swirling Flow.

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Title: Segregation Control and Dendritic Structure Improvement of Steel Plate Hot Rolled Commercial Steel by Electromagnetic Swirling Flow.
Authors: Sun, Yanwen1,2 (AUTHOR), Zhang, Siyuan2,3 (AUTHOR), Liu, Zeyi1,2 (AUTHOR), Sun, Meijia1 (AUTHOR), Wu, Chunlei4 (AUTHOR), Liu, Xiaoming1 (AUTHOR) liuxm@smm.neu.edu.cn, Yuan, Yi1 (AUTHOR), Wang, Qiang1 (AUTHOR)
Source: Steel Research International. Nov2025, Vol. 96 Issue 11, p177-187. 11p.
Subjects: Dendritic crystals, Steel metallurgy, Rapid solidification processing of metals, Swirling flow, Grain refinement, Separation (Technology), Steel, Dispersion (Chemistry)
Abstract: The mitigation of segregation within the slab is crucial for enhancing product quality. Controlled regulation of the flow and thermal fields in the mold facilitates precise adjustment of dendrite arm spacing, thereby suppressing segregation mechanisms. This study investigates the mechanisms by which the electromagnetic swirling flow in the nozzle (EMSFN) mitigates segregation in steel metallurgy. The segregation indices of solute elements in slabs are systematically compared under conditions with and without EMSFN application. A statistical analysis of dendrite arm spacing across slab regions establishes the correlation between dendritic microstructure refinement and segregation severity. Under EMSFN operation, the average primary dendrite arm spacing is reduced from 664.13 to 532.99 μm, while the secondary dendrite arm spacing decreases by 24.15% relative to without EMSFN conditions. The migration of solute elements toward the slab center is suppressed, resulting in a 45.98% reduction in the width of the centerline segregation zone. The industrial implementation of EMSFN is demonstrated to be critical for homogenizing solute distribution, enhancing solidification efficiency, refining solidification structure morphology, and enabling the production of high‐quality steel products. [ABSTRACT FROM AUTHOR]
Copyright of Steel Research International is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Segregation Control and Dendritic Structure Improvement of Steel Plate Hot Rolled Commercial Steel by Electromagnetic Swirling Flow.
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  Data: <searchLink fieldCode="AR" term="%22Sun%2C+Yanwen%22">Sun, Yanwen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Siyuan%22">Zhang, Siyuan</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Zeyi%22">Liu, Zeyi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Meijia%22">Sun, Meijia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Chunlei%22">Wu, Chunlei</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Xiaoming%22">Liu, Xiaoming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liuxm@smm.neu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yuan%2C+Yi%22">Yuan, Yi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Qiang%22">Wang, Qiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Steel+Research+International%22">Steel Research International</searchLink>. Nov2025, Vol. 96 Issue 11, p177-187. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Dendritic+crystals%22">Dendritic crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+metallurgy%22">Steel metallurgy</searchLink><br /><searchLink fieldCode="DE" term="%22Rapid+solidification+processing+of+metals%22">Rapid solidification processing of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Swirling+flow%22">Swirling flow</searchLink><br /><searchLink fieldCode="DE" term="%22Grain+refinement%22">Grain refinement</searchLink><br /><searchLink fieldCode="DE" term="%22Separation+%28Technology%29%22">Separation (Technology)</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink><br /><searchLink fieldCode="DE" term="%22Dispersion+%28Chemistry%29%22">Dispersion (Chemistry)</searchLink>
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  Data: The mitigation of segregation within the slab is crucial for enhancing product quality. Controlled regulation of the flow and thermal fields in the mold facilitates precise adjustment of dendrite arm spacing, thereby suppressing segregation mechanisms. This study investigates the mechanisms by which the electromagnetic swirling flow in the nozzle (EMSFN) mitigates segregation in steel metallurgy. The segregation indices of solute elements in slabs are systematically compared under conditions with and without EMSFN application. A statistical analysis of dendrite arm spacing across slab regions establishes the correlation between dendritic microstructure refinement and segregation severity. Under EMSFN operation, the average primary dendrite arm spacing is reduced from 664.13 to 532.99 μm, while the secondary dendrite arm spacing decreases by 24.15% relative to without EMSFN conditions. The migration of solute elements toward the slab center is suppressed, resulting in a 45.98% reduction in the width of the centerline segregation zone. The industrial implementation of EMSFN is demonstrated to be critical for homogenizing solute distribution, enhancing solidification efficiency, refining solidification structure morphology, and enabling the production of high‐quality steel products. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Steel Research International is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1002/srin.202500037
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 177
    Subjects:
      – SubjectFull: Dendritic crystals
        Type: general
      – SubjectFull: Steel metallurgy
        Type: general
      – SubjectFull: Rapid solidification processing of metals
        Type: general
      – SubjectFull: Swirling flow
        Type: general
      – SubjectFull: Grain refinement
        Type: general
      – SubjectFull: Separation (Technology)
        Type: general
      – SubjectFull: Steel
        Type: general
      – SubjectFull: Dispersion (Chemistry)
        Type: general
    Titles:
      – TitleFull: Segregation Control and Dendritic Structure Improvement of Steel Plate Hot Rolled Commercial Steel by Electromagnetic Swirling Flow.
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          Name:
            NameFull: Sun, Yanwen
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            NameFull: Zhang, Siyuan
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            NameFull: Liu, Zeyi
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            NameFull: Liu, Xiaoming
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            – D: 01
              M: 11
              Text: Nov2025
              Type: published
              Y: 2025
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