| 张颖隆,王坤宇,李冰蕾,冯运莉.Nd(FeTiNb)12N/α-Fe纳米复相永磁材料微观组织与磁性能[J].稀有金属材料与工程,2022,51(8):3018~3024.[ZHANG Yinglong,Wang Kunyu,Li Binglei,Feng Yunli.Nd(FeTiNb)12N/α-Fe nanocomposite permanent magnetic materialsmicrostructure and magnetic properties[J].Rare Metal Materials and Engineering,2022,51(8):3018~3024.] |
| Nd(FeTiNb)12N/α-Fe纳米复相永磁材料微观组织与磁性能 |
| 投稿时间：2021-07-16 修订日期：2021-08-09 |
| 中文关键词: NdFe12相，添加元素，渗氮处理，微观组织，磁性能 |
| 基金项目:国家自然科学基金项目（51974134）；河北省科技重大专项项目(21281008Z)；河北省高等学校科学技术研究项目（QN2021115） |
| 中文摘要: |
| 采用真空电弧熔炼和熔体快淬工艺分别制备了化学成分为Nd(FeTi)12/ɑ-Fe与Nd(FeTiNb)12/ɑ-Fe合金薄带,研究添加Nb元素以及不同氮化温度对合金微观组织和磁性能的影响。结果表明：Nb元素的添加可显著细化晶粒尺寸,同时提高了合金的非晶形成率。合金薄带经过晶化退火与渗氮处理后,磁性能有明显升高。Nd(FeTiNb)12N/ɑ-Fe薄带的磁性能在渗氮温度为500 ℃时达到最佳,此时的剩磁(Br)和矫顽力(Hcj)分别为21.9 emu/g和700 Oe。 |
| Nd(FeTiNb)12N/α-Fe nanocomposite permanent magnetic materialsmicrostructure and magnetic properties |
| 英文关键词:NdFe12 phase, additive elements, nitriding treatment, microstructure, magnetic properties |
| 英文摘要: |
| Thin strips of Nd(FeTi)12/ɑ-Fe and Nd(FeTiNb)12/ɑ-Fe alloys were prepared by vacuum arc melting and melt quenching processes to investigate the effects of the addition of Nb elements and different nitriding temperatures on the microstructure and magnetic properties of the alloys. The results show that the addition of Nb elements significantly refines the grain size and increases the amorphous formation rate of the alloy. The magnetic properties of Nd(FeTiNb)12N/ɑ-Fe strips were significantly increased after crystallisation annealing and nitriding, and the best magnetic properties were achieved at a nitriding temperature of 500 °C, when the remanent magnetisation (Br) and coercivity (Hcj) were 21.9 emu/g and 700 Oe, respectively. |
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