Effects of Ribbon Thickness on Structure and Soft Magnetic Properties of a High-Cu-Content FeBCuNb Nanocrystalline Alloy
文献类型：期刊论文
| 作者 | Wu, Li-Cheng; Li, Yan-Hui; Jia, Xing-Jie; He, Ai-Na; Zhang, Wei |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2021 |
| 关键词 | HIGH B-S GRAIN-SIZE CRYSTALLIZATION DEPENDENCE |
| 英文摘要 | The effects of ribbon thickness (t) on the structure and magnetic properties of a Fe82.3B13Cu1.7Nb3 alloy in melt-spun and annealed states have been investigated. Increasing the t from 15 to 23 mu m changes the structure of the melt-spun ribbons from a single amorphous phase to a composite with dense alpha-Fe nanograins embedded in the amorphous matrix. The grain size (D alpha-Fe) of the alpha-Fe near the free surface of the ribbon is about 6.7 nm, and it gradually decreases along the cross section toward the wheel-contacted surface. Further increasing the t to 32 mu m coarsens the D alpha-Fe near the free surface to 15.2 nm and aggravates the D alpha-Fe ramp along the cross section. After annealing, the ribbon with t = 15 mu m has relatively large alpha-Fe grains with D alpha-Fe > 30 nm, while the thicker ribbons possessing the pre-existing nanograins form a finer nanostructure with D alpha-Fe < 16 nm. The structural uniformity of the ribbon with t = 23 mu m is better than that of the ribbon with t = 32 mu m. The annealed ribbons with t = 23 and 32 mu m possess superior soft magnetic properties to the ribbon with t = 15 mu m. The ribbon with t = 23 mu m exhibits a high saturation magnetic flux density of 1.68 T, low coercivity of 9.6 A/m, and high effective permeability at 1 kHz of 15,000. The ribbon with t = 32 mu m has a slightly larger coercivity due to the lower structural uniformity. The formation mechanism of the fine nanostructure for the ribbons with suitable t has been discussed in terms of the competitive growth effect among the pre-existing alpha-Fe nanograins. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21902]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Zhang, W (corresponding author), Dalian Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China. 2.Li, YH |
| 推荐引用方式 GB/T 7714 | Wu, Li-Cheng,Li, Yan-Hui,Jia, Xing-Jie,et al. Effects of Ribbon Thickness on Structure and Soft Magnetic Properties of a High-Cu-Content FeBCuNb Nanocrystalline Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021. |
| APA | Wu, Li-Cheng,Li, Yan-Hui,Jia, Xing-Jie,He, Ai-Na,&Zhang, Wei.(2021).Effects of Ribbon Thickness on Structure and Soft Magnetic Properties of a High-Cu-Content FeBCuNb Nanocrystalline Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS. |
| MLA | Wu, Li-Cheng,et al."Effects of Ribbon Thickness on Structure and Soft Magnetic Properties of a High-Cu-Content FeBCuNb Nanocrystalline Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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