强激光与粒子束, 2012, 24 (1): 229, 网络出版: 2012-02-14  

Ni-Nd-B合金的性能研究

Properties research of Ni-Nd-B alloys
作者单位
1 西南科技大学 材料科学与工程学院, 四川 绵阳 621010
2 中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
摘要
采用电弧式熔体快淬/吸铸技术, 制备了不同成分的Ni-Nd-B试样, 借助X射线衍射、扫描电子显微镜、热分析法、静态磁性测试仪等手段进行了分析。研究发现, 用电弧式熔体快淬/吸铸技术可以较成功制备系列直径6 mm的Ni-Nd-B大块非晶, 且满足深度共晶成分试样表, 表现出较理想的非晶形成能力。Ni4NdB材料具有约79.13 ℃的过冷度, Ni13Nd3B2材料具有约69.37 ℃的过冷度;Ni, Nd成分微量变化引起材料较明显的晶化趋向。此外, Ni, Nd成分微量变化导致材料矫顽力、饱和磁化强度减小。
Abstract
Ni-Nd-B samples were prepared by arc-type melt-spinning/suction casting techniques, and then were analyzed by X-ray diffraction, scanning electron microscopy and differential thermal analyses and with static magnetic tester. The results show that 6 mm-diameter bulk amorphous samples have been prepared, which conform with the depth eutectic theory and show relatively ideal glass forming ability. The undercooling temperatures of Ni4NdB and Ni13Nd3B2 are 79.13 ℃ and 69.37 ℃, respectively. The trace changes of Ni, Nd compositions cause evident crystallization of materials, and they also lead to the decrease in material coercivity and saturation magnetization.
参考文献

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高存梅, 丁志杰, 唐永建, 杜凯, 易勇. Ni-Nd-B合金的性能研究[J]. 强激光与粒子束, 2012, 24(1): 229. Gao Cunmei, Ding Zhijie, Tang Yongjian, Du Kai, Yi Yong. Properties research of Ni-Nd-B alloys[J]. High Power Laser and Particle Beams, 2012, 24(1): 229.

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