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The Influence of Structural State on the Coercivity of Fe72Si16B7Cu1Nb4 Nanocrystalline Alloys.

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Title: The Influence of Structural State on the Coercivity of Fe72Si16B7Cu1Nb4 Nanocrystalline Alloys.
Authors: Shao, Jiashao1 (AUTHOR), Gu, Wenju2 (AUTHOR), Li, Li2 (AUTHOR), Yao, Xiucong2 (AUTHOR), Geng, Yanfei1 (AUTHOR), Chen, Xizhang1 (AUTHOR) chenxizhang@wzu.edu.cn
Source: Journal of Materials Engineering & Performance. Feb2026, Vol. 35 Issue 4, p3081-3091. 11p.
Subjects: Coercive fields (Electronics), Magnetic properties, Nanocrystals, Recrystallization (Metallurgy), Solid state chemistry, Melt spinning, Soft magnetic materials, Magnetic cores
Abstract: This study successfully fabricated the Fe72Si16B7Cu1Nb4 iron-based amorphous alloy via melt-spinning and systematically investigated structural relaxation, magnetic domain structure evolution, and their impact on coercivity through precisely controlled multi-step annealing at primary annealing temperatures (510 , 520 , 530 , and 540 °C). The results reveal that as the annealing temperature increased from 510 °C to 540 °C, the volume fraction of the crystalline phase significantly increased from 59.53 to 71.43%, while the thickness of the residual amorphous layer decreased noticeably from 1.987 to 1.673 nm. Furthermore, the annealing treatment led to a substantial enhancement in the alloy's saturation magnetic induction from 0.597 to 1.120 T, and a dramatic reduction in coercivity from 15.623 to 0.298 A/m. This research elucidates the critical role of enhanced atomic mobility, atomic rearrangement, and elimination of free volume in optimizing the magnetic domain structure and improving soft magnetic properties. This study provides valuable guidance for the design of high-sensitivity magnetic cores in power electronics, such as residual current protection devices, by optimizing coercivity through controlled annealing. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Engineering & Performance is the property of Springer Nature 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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 191287987
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Engineering+%26+Performance%22">Journal of Materials Engineering & Performance</searchLink>. Feb2026, Vol. 35 Issue 4, p3081-3091. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Coercive+fields+%28Electronics%29%22">Coercive fields (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties%22">Magnetic properties</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Recrystallization+%28Metallurgy%29%22">Recrystallization (Metallurgy)</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+state+chemistry%22">Solid state chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Melt+spinning%22">Melt spinning</searchLink><br /><searchLink fieldCode="DE" term="%22Soft+magnetic+materials%22">Soft magnetic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+cores%22">Magnetic cores</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study successfully fabricated the Fe72Si16B7Cu1Nb4 iron-based amorphous alloy via melt-spinning and systematically investigated structural relaxation, magnetic domain structure evolution, and their impact on coercivity through precisely controlled multi-step annealing at primary annealing temperatures (510 , 520 , 530 , and 540 °C). The results reveal that as the annealing temperature increased from 510 °C to 540 °C, the volume fraction of the crystalline phase significantly increased from 59.53 to 71.43%, while the thickness of the residual amorphous layer decreased noticeably from 1.987 to 1.673 nm. Furthermore, the annealing treatment led to a substantial enhancement in the alloy's saturation magnetic induction from 0.597 to 1.120 T, and a dramatic reduction in coercivity from 15.623 to 0.298 A/m. This research elucidates the critical role of enhanced atomic mobility, atomic rearrangement, and elimination of free volume in optimizing the magnetic domain structure and improving soft magnetic properties. This study provides valuable guidance for the design of high-sensitivity magnetic cores in power electronics, such as residual current protection devices, by optimizing coercivity through controlled annealing. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Engineering & Performance is the property of Springer Nature 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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      – Type: doi
        Value: 10.1007/s11665-025-11827-w
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 3081
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      – SubjectFull: Coercive fields (Electronics)
        Type: general
      – SubjectFull: Magnetic properties
        Type: general
      – SubjectFull: Nanocrystals
        Type: general
      – SubjectFull: Recrystallization (Metallurgy)
        Type: general
      – SubjectFull: Solid state chemistry
        Type: general
      – SubjectFull: Melt spinning
        Type: general
      – SubjectFull: Soft magnetic materials
        Type: general
      – SubjectFull: Magnetic cores
        Type: general
    Titles:
      – TitleFull: The Influence of Structural State on the Coercivity of Fe72Si16B7Cu1Nb4 Nanocrystalline Alloys.
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            NameFull: Shao, Jiashao
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            NameFull: Gu, Wenju
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            NameFull: Yao, Xiucong
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 35
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