Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy
In Fe-Si alloy systems, the Fe-6.5wt%Si alloy shows low iron core losses and near-zero magnetostriction, thus having great potential for high-frequency applications. In this study, an Fe-6.5wt%Si alloy hot band was subjected to a moderate warm rolling with a thickness reduction of 40%, and then anne...
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MDPI AG
2023-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/2/370 |
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| author | Haijie Xu Cheng Xu Lulan Jiang Yuanxiang Zhang Xuedao Shu Xiaogang Lin |
| author_facet | Haijie Xu Cheng Xu Lulan Jiang Yuanxiang Zhang Xuedao Shu Xiaogang Lin |
| author_sort | Haijie Xu |
| collection | DOAJ |
| description | In Fe-Si alloy systems, the Fe-6.5wt%Si alloy shows low iron core losses and near-zero magnetostriction, thus having great potential for high-frequency applications. In this study, an Fe-6.5wt%Si alloy hot band was subjected to a moderate warm rolling with a thickness reduction of 40%, and then annealed at different temperatures. The recrystallization behavior was investigated using the EBSD technique. After the moderate warm rolling, the initial gradient structure of the hot band is inherited, leading to gradient recrystallization behaviors during the further annealing process. The sheet surface first densely nucleates and forms strong <110>//ND and {221}<114> textures. However, the <110>//ND and {221}<114> grains have fewer high-mobility and high-energy (20–45°) boundaries than the other oriented matrix grains, leading to insufficient growth advantages. In the center region, the recrystallization is slow, but the nuclei usually have larger sizes. The inheritance of the <001>//ND (θ-fiber) texture from the initial hot band appears. Some θ-fiber grains, which have easy-magnetized <001> axes lying in the sheet plane, preferentially nucleate in the strong α-fiber textured matrices and form a strong θ-fiber recrystallization texture in the center region. |
| first_indexed | 2024-03-11T08:25:40Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T08:25:40Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-e4829cbe5fe14d219ed8a3be04dadf912023-11-16T22:08:22ZengMDPI AGMetals2075-47012023-02-0113237010.3390/met13020370Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si AlloyHaijie Xu0Cheng Xu1Lulan Jiang2Yuanxiang Zhang3Xuedao Shu4Xiaogang Lin5Zhejiang Provincial Key Laboratory of Part Rolling Technology, Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, ChinaZhejiang Provincial Key Laboratory of Part Rolling Technology, Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, ChinaZhejiang Provincial Key Laboratory of Part Rolling Technology, Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, ChinaThe State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaZhejiang Provincial Key Laboratory of Part Rolling Technology, Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, ChinaSino-Engine Technologies Co., Ltd., Ningbo 315000, ChinaIn Fe-Si alloy systems, the Fe-6.5wt%Si alloy shows low iron core losses and near-zero magnetostriction, thus having great potential for high-frequency applications. In this study, an Fe-6.5wt%Si alloy hot band was subjected to a moderate warm rolling with a thickness reduction of 40%, and then annealed at different temperatures. The recrystallization behavior was investigated using the EBSD technique. After the moderate warm rolling, the initial gradient structure of the hot band is inherited, leading to gradient recrystallization behaviors during the further annealing process. The sheet surface first densely nucleates and forms strong <110>//ND and {221}<114> textures. However, the <110>//ND and {221}<114> grains have fewer high-mobility and high-energy (20–45°) boundaries than the other oriented matrix grains, leading to insufficient growth advantages. In the center region, the recrystallization is slow, but the nuclei usually have larger sizes. The inheritance of the <001>//ND (θ-fiber) texture from the initial hot band appears. Some θ-fiber grains, which have easy-magnetized <001> axes lying in the sheet plane, preferentially nucleate in the strong α-fiber textured matrices and form a strong θ-fiber recrystallization texture in the center region.https://www.mdpi.com/2075-4701/13/2/370non-oriented Fe-6.5wt%Si alloymoderate warm rollinggradient recrystallizationnucleationgrain growth |
| spellingShingle | Haijie Xu Cheng Xu Lulan Jiang Yuanxiang Zhang Xuedao Shu Xiaogang Lin Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy Metals non-oriented Fe-6.5wt%Si alloy moderate warm rolling gradient recrystallization nucleation grain growth |
| title | Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy |
| title_full | Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy |
| title_fullStr | Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy |
| title_full_unstemmed | Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy |
| title_short | Gradient Recrystallization Behavior of a Moderate Warm-Rolled Non-Oriented Fe-6.5wt%Si Alloy |
| title_sort | gradient recrystallization behavior of a moderate warm rolled non oriented fe 6 5wt si alloy |
| topic | non-oriented Fe-6.5wt%Si alloy moderate warm rolling gradient recrystallization nucleation grain growth |
| url | https://www.mdpi.com/2075-4701/13/2/370 |
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