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Continuous Casting Soft Reduction Control of Macro‐/Semimacro Synergistic Homogeneity of Bloom and Rod for CF53 Camshaft Steel.

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Title: Continuous Casting Soft Reduction Control of Macro‐/Semimacro Synergistic Homogeneity of Bloom and Rod for CF53 Camshaft Steel.
Authors: Wang, Pu1 (AUTHOR) wangpu_ustb@163.com, Wang, Haijie2 (AUTHOR), Chen, Liang2 (AUTHOR), Zhang, Ze3 (AUTHOR), Chen, Gang3 (AUTHOR), Fan, Deguo3 (AUTHOR), Zhang, Jiaquan2 (AUTHOR) jqzhang@metall.ustb.edu.cn
Source: Steel Research International. Sep2025, Vol. 96 Issue 9, p284-298. 15p.
Subjects: Homogeneity, Steel manufacture, Material plasticity, Steel, Mechanical behavior of materials, Continuous casting
Abstract: The cross wedge rolling process exposes the camshaft center to complex alternating shear and tensile stresses, which require exceptionally high homogeneity in the steel. This study investigates the macro/semimacro segregation and mechanical properties of bloom and rod for CF53 camshaft steel. Based on the findings, the study proposes a mechanism and strategy for controlling the macroscopic and semimacroscopic homogeneity of CF53 camshaft through soft reduction. The results indicate that applying a 7–10 mm reduction when the center solid fraction is 0.1–1.0 can promote the flow of liquid steel at the solidification end, reduce the size of the equiaxed crystals, significantly decrease the central segregation and the carbon range on transverse cross sections, and considerably reduce the size and number and solutes enrichment of semimacroscopic spot segregations in the blooms. Correspondingly, the central segregation and banded defects in the rods improve. The plasticity and toughness in the radial direction of the rods are enhanced. This demonstrates that SR can synergistically regulate the macro/semimacro homogeneity of camshaft steel blooms and rods, providing high‐quality materials for subsequent processing and improving the competitiveness of camshaft 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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  Label: Title
  Group: Ti
  Data: Continuous Casting Soft Reduction Control of Macro‐/Semimacro Synergistic Homogeneity of Bloom and Rod for CF53 Camshaft Steel.
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Pu%22">Wang, Pu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wangpu_ustb@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Haijie%22">Wang, Haijie</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Liang%22">Chen, Liang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ze%22">Zhang, Ze</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Gang%22">Chen, Gang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fan%2C+Deguo%22">Fan, Deguo</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jiaquan%22">Zhang, Jiaquan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> jqzhang@metall.ustb.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Steel+Research+International%22">Steel Research International</searchLink>. Sep2025, Vol. 96 Issue 9, p284-298. 15p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Homogeneity%22">Homogeneity</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+manufacture%22">Steel manufacture</searchLink><br /><searchLink fieldCode="DE" term="%22Material+plasticity%22">Material plasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Continuous+casting%22">Continuous casting</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The cross wedge rolling process exposes the camshaft center to complex alternating shear and tensile stresses, which require exceptionally high homogeneity in the steel. This study investigates the macro/semimacro segregation and mechanical properties of bloom and rod for CF53 camshaft steel. Based on the findings, the study proposes a mechanism and strategy for controlling the macroscopic and semimacroscopic homogeneity of CF53 camshaft through soft reduction. The results indicate that applying a 7–10 mm reduction when the center solid fraction is 0.1–1.0 can promote the flow of liquid steel at the solidification end, reduce the size of the equiaxed crystals, significantly decrease the central segregation and the carbon range on transverse cross sections, and considerably reduce the size and number and solutes enrichment of semimacroscopic spot segregations in the blooms. Correspondingly, the central segregation and banded defects in the rods improve. The plasticity and toughness in the radial direction of the rods are enhanced. This demonstrates that SR can synergistically regulate the macro/semimacro homogeneity of camshaft steel blooms and rods, providing high‐quality materials for subsequent processing and improving the competitiveness of camshaft 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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        Value: 10.1002/srin.202400194
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 284
    Subjects:
      – SubjectFull: Homogeneity
        Type: general
      – SubjectFull: Steel manufacture
        Type: general
      – SubjectFull: Material plasticity
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      – SubjectFull: Steel
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      – SubjectFull: Mechanical behavior of materials
        Type: general
      – SubjectFull: Continuous casting
        Type: general
    Titles:
      – TitleFull: Continuous Casting Soft Reduction Control of Macro‐/Semimacro Synergistic Homogeneity of Bloom and Rod for CF53 Camshaft Steel.
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            NameFull: Wang, Pu
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            NameFull: Wang, Haijie
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            NameFull: Chen, Liang
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            NameFull: Chen, Gang
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            – D: 01
              M: 09
              Text: Sep2025
              Type: published
              Y: 2025
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