Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys
The interplay between melting viscosity, amorphous forming ability (AFA), nanocrystalline structure, and soft magnetic properties (SMPs) in Fe-based multicomponent alloys remains unclear. This study systematically explores the effects of Sn doping on the viscosity, precursor structure, and nanocryst...
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2025-02-01
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| author | Menglei Sun Aina He Ning Zhang Bojun Zhang Yaqiang Dong Jiawei Li Qikui Man Baogen Shen |
| author_facet | Menglei Sun Aina He Ning Zhang Bojun Zhang Yaqiang Dong Jiawei Li Qikui Man Baogen Shen |
| author_sort | Menglei Sun |
| collection | DOAJ |
| description | The interplay between melting viscosity, amorphous forming ability (AFA), nanocrystalline structure, and soft magnetic properties (SMPs) in Fe-based multicomponent alloys remains unclear. This study systematically explores the effects of Sn doping on the viscosity, precursor structure, and nanocrystallization behavior of Fe-Si-B-Nb-Cu-Al-P alloys. Sn doping reduces melting viscosity and induces an abnormal viscosity rise during cooling, lowering the fragility parameter ratio (<i>F</i>) between high- and low-temperature zones, thereby enhancing the AFA of the precursor ribbons. High-temperature heat preservation treatment (HTP) of the melt further reduces the <i>F</i>, improves precursor disorder, and refines nanocrystals, leading to reduced average magnetocrystalline anisotropy and optimized SMPs. The HTP-treated Sn-dopped alloy shows superior SMPs, including low coercivity of 0.4 A/m and high permeability of 32,400 at 5 kHz, making it highly promising for advanced electromagnetic device applications. This work reveals the relationship between viscosity, precursor structure, nanocrystalline structure, and SMPs of Fe-based alloys, which provides an approach for the optimization of SMPs. |
| format | Article |
| id | doaj-art-2d4e1acb81ae4588aaaac37058dd7f6d |
| institution | OA Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-2d4e1acb81ae4588aaaac37058dd7f6d2025-08-20T01:48:53ZengMDPI AGMetals2075-47012025-02-0115326210.3390/met15030262Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn AlloysMenglei Sun0Aina He1Ning Zhang2Bojun Zhang3Yaqiang Dong4Jiawei Li5Qikui Man6Baogen Shen7School of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaThe interplay between melting viscosity, amorphous forming ability (AFA), nanocrystalline structure, and soft magnetic properties (SMPs) in Fe-based multicomponent alloys remains unclear. This study systematically explores the effects of Sn doping on the viscosity, precursor structure, and nanocrystallization behavior of Fe-Si-B-Nb-Cu-Al-P alloys. Sn doping reduces melting viscosity and induces an abnormal viscosity rise during cooling, lowering the fragility parameter ratio (<i>F</i>) between high- and low-temperature zones, thereby enhancing the AFA of the precursor ribbons. High-temperature heat preservation treatment (HTP) of the melt further reduces the <i>F</i>, improves precursor disorder, and refines nanocrystals, leading to reduced average magnetocrystalline anisotropy and optimized SMPs. The HTP-treated Sn-dopped alloy shows superior SMPs, including low coercivity of 0.4 A/m and high permeability of 32,400 at 5 kHz, making it highly promising for advanced electromagnetic device applications. This work reveals the relationship between viscosity, precursor structure, nanocrystalline structure, and SMPs of Fe-based alloys, which provides an approach for the optimization of SMPs.https://www.mdpi.com/2075-4701/15/3/262nanocrystalline alloyviscosityprecursor structurenanocrystallized structurecoercivity |
| spellingShingle | Menglei Sun Aina He Ning Zhang Bojun Zhang Yaqiang Dong Jiawei Li Qikui Man Baogen Shen Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys Metals nanocrystalline alloy viscosity precursor structure nanocrystallized structure coercivity |
| title | Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys |
| title_full | Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys |
| title_fullStr | Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys |
| title_full_unstemmed | Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys |
| title_short | Correlation of Viscosity, Precursor Structure, Nanocrystallized Structure with Soft Magnetic Properties in FeSiCuBNbAlPSn Alloys |
| title_sort | correlation of viscosity precursor structure nanocrystallized structure with soft magnetic properties in fesicubnbalpsn alloys |
| topic | nanocrystalline alloy viscosity precursor structure nanocrystallized structure coercivity |
| url | https://www.mdpi.com/2075-4701/15/3/262 |
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