Origins of axial inhomogeneity of magnetic performance in hot deformed Nd-Fe-B ring magnets
文献类型：会议论文
| 作者 | Yin, Wen-Zong; Chen, Ren-Jie; Tang, Xu; Lin, Min; Lee, Don; Yan, Aru |
| 出版日期 | 2012 |
| 会议日期 | OCT 30-30, 2011 |
| 关键词 | BACKWARD EXTRUSION PERMANENT-MAGNET NDFEB DEFORMATION MICROSTRUCTURE TEMPERATURE TEXTURE ALLOYS |
| 卷号 | 111 |
| 期号 | 7 |
| DOI | 10.1063/1.3677933 |
| 英文摘要 | Hot-deformed Nd-Fe-B ring magnets have wide potential applications. These ring magnets, however, exhibit axial inhomogeneity of magnetic performance. In this work, the effects of density, pressure, deformation temperature, deformation rate, and texture on axial magnetic performance were investigated over ring magnets prepared by backward extrusion method. It was demonstrated that the texture accounted for the variation of magnetic performance along axial direction. Microstructures of the ring magnets were examined with SEM, which further revealed two different origins of axial inhomogeneity of magnetic performance. The deformation degree of Nd-Fe-B grains plays a critical role in the performance difference between the top and middle part of ring magnet. But that between the middle and bottom part mainly results from different alignment orientations of platelet Nd-Fe-B grains. It was both deformation degree and alignment orientation that determined the axial texture and consequent magnetic performance of hot-deformed ring magnets. (C) 2012 American Institute of Physics. [doi:10.1063/1.3677933] |
| 学科主题 | Physics |
| ISSN号 | 0021-8979 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23649]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Yin, Wen-Zong,Chen, Ren-Jie,Tang, Xu,et al. Origins of axial inhomogeneity of magnetic performance in hot deformed Nd-Fe-B ring magnets[C]. 见:. OCT 30-30, 2011. |
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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