| 高性能稀土永磁合金Nd8Fe86B6的母合金显微组织及其对后续工艺影响的探讨 |
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| 引用本文： | 郭宝会,董康军.高性能稀土永磁合金Nd8Fe86B6的母合金显微组织及其对后续工艺影响的探讨[J].河南科学,2009,27(11):1366-1369. |
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| 作者姓名： | 郭宝会 董康军 |
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| 作者单位： | 渭南师范学院,物理系,陕西,渭南,714000 |
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| 基金项目： | 陕西省教育厅2008科学研究计划项目，渭南师范学院专项科研项目 |
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| 摘 要： | Nd8Fe86B6铸锭在非平衡凝固条件下，当冷却速度比较小时，相的组成为Nd2Fe，4B＋α-Fe＋富B相．随着冷却速度的增大，富B相消失，相的尺寸由大变小，且分布不均匀．揭示了由于母合金在各个部位成分的不均匀性，导致‘后续工艺中颗粒长大的可能性的原因，并提出了一些可能的改进措施．
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| 关 键 词： | 冷却速度 母合金 不均匀性 |
The Microstructure of Nd8Fe86B6 Master Ingot on the High Permanent Magnets and the Influence of Its Succeeding Process |
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| Guo Baohui,Dong Kangjun.The Microstructure of Nd8Fe86B6 Master Ingot on the High Permanent Magnets and the Influence of Its Succeeding Process[J].Henan Science,2009,27(11):1366-1369. |
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| Authors: | Guo Baohui Dong Kangjun |
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| Institution: | (The Department of Physics, Weinan Teachers University, Weinan 714000, Shaanxi China) |
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| Abstract: | The phase of Nd8Fe86B6 ingot is consisted of Nd2Fe14B,α-Fe and rich Nd phase with low cooling rates on the non-equilibrium solidification condition. With increasing the cooling rate,rich B phase is not observation and the phase grain size become smaller and in-homogeneity. The impossible reason of grains growth during succeeding process is analyzed owing to composite in-homogeneity of different position,and the possible improvement measures is put forward. |
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| Keywords: | cooling rate master ingot in-homogeneity |
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