| 快淬参数对Nd9.5Fe84B6.5合金磁性能和微观结构的影响 |
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| 引用本文： | 任科智,谭晓华,徐晖,侯雪玲,李荷芸,梁扬,鲁波.快淬参数对Nd9.5Fe84B6.5合金磁性能和微观结构的影响[J].稀有金属材料与工程,2018,47(10):3208-3212. |
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| 作者姓名： | 任科智 谭晓华 徐晖 侯雪玲 李荷芸 梁扬 鲁波 |
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| 作者单位： | 材料研究所,材料研究所,材料研究所,材料研究所,材料研究所,材料研究所,材料研究所 |
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| 基金项目： | 国家自然科学基金资助(项目号51471101) |
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| 摘 要： | 本文采用直接快淬法制备了Nd9.5Fe84B6.5合金,研究了腔室压力和甩带速度这两个快淬参数对其磁性能和微观结构的影响,建立了两者之间的关联性。研究发现：熔体快淬过程中在其它条件保持不变时,腔室压力和甩带速度之间存在着互相补偿的关系。腔室压力为0.03 MPa、快淬速度为19 m/s时制备的条带样品与腔室压力为0.05 MPa、快淬速度为15 m/s时制备的样品厚度和磁性能的数值相近。X 射线衍射和透射电子显微镜的结果表明：这两种条件下得到的条带样品具有相同的相组成和相似的微观结构。因此,通过调整腔室压力和甩带速度可以得到微观结构和磁性能相近的条带样品,这将为制备高性能的稀土永磁材料及其工业化生产提供指导。
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| 关 键 词： | 稀土永磁材料 熔体快淬参数 磁性能 微观结构 |
| 收稿时间： | 2016/12/21 0:00:00 |
| 修稿时间： | 2017/3/3 0:00:00 |
Effect of quenching parameters on magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy |
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| Ren Kezhi,Tan Xiaohu,Xu Hui,Hou Xueling,Li Heyun,Liang Yang and Lu Bo.Effect of quenching parameters on magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy[J].Rare Metal Materials and Engineering,2018,47(10):3208-3212. |
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| Authors: | Ren Kezhi Tan Xiaohu Xu Hui Hou Xueling Li Heyun Liang Yang and Lu Bo |
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| Affiliation: | Institute of Materials,School of Materials Science and Engineering,Shanghai University,Institute of Materials,School of Materials Science and Engineering,Shanghai University,Institute of Materials,School of Materials Science and Engineering,Shanghai University,Institute of Materials,School of Materials Science and Engineering,Shanghai University,Institute of Materials,School of Materials Science and Engineering,Shanghai University,Institute of Materials,School of Materials Science and Engineering,Shanghai University,Institute of Materials,School of Materials Science and Engineering,Shanghai University |
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| Abstract: | The Nd9.5Fe84B6.5 ribbons were prepared by melt-spinning. The effects of the chamber pressure and wheel speed on the magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy were investigated. A complementary relationship between the chamber pressure and the wheel speed in rapid solidification of melt-spinning is proposed. The values of thickness and magnetic property in the ribbon sample prepared at the chamber pressure of 0.03 MPa and the wheel speed of 19 m/s are similar to that in the ribbon prepared at the chamber pressure of 0.05 MPa and the wheel speed of 15 m/s. XRD and TEM results show that the ribbons prepared at two conditions have same phase constitution and similar microstructure. Our work indicate that the melt-spun Nd9.5Fe84B6.5 ribbons with similar magnetic property and microstructure are obtained by controlling the chamber pressure and the wheel speed in rapid solidification, which can be used to serve as a guide in achieving permanent materials with good magnetic property in mass production. |
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| Keywords: | rare earth permanent magnets quenching parameters magnetic property microstructure |
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