期刊
SCRIPTA MATERIALIA
卷 132, 期 -, 页码 49-52出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2017.01.024
关键词
Nd-Fe-B; Hot-deformed magnet; Coercivity; Coarse grains; Local compressive stress
类别
资金
- National Key Research and Development Program of China [2016YFB0700902]
- Ningbo International Cooperation Project [2015D10019]
- Ningbo Innovation Team [2012881001]
- Nature Science Foundation of Zhejiang Province [LQ14E010007]
Anisotropic ultrafine-grained Nd-Fe-B magnets with WC addition were prepared by hot deformation. With WC nano-particles addition of similar to 1.0 wt.%, the squareness was optimized and the coercivity of the hot-deformed magnets increased substantially by 2.16 kOe, from 15.59 to 17.75 kOe without expense of the remanent magnetization. The observation for microstructure revealed that the WC nano-particles mainly existed on the interfaces of melt-spun ribbons. Meanwhile, due to the local compressive stress induced by the hard WC nano-particles, the deformability of neighboring grains was remarkably enhanced which leads to the reduction of the coarse grain regions. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据