FeCuNbSiB纳米晶合金软磁性能的热处理工艺调控研究

doi:10.11930/j.issn.1004-9649.202007232

中国电力 ›› 2022, Vol. 55 ›› Issue (2): 200-208.DOI: 10.11930/j.issn.1004-9649.202007232

• 新型材料在电力系统中的应用 • 上一篇下一篇

FeCuNbSiB纳米晶合金软磁性能的热处理工艺调控研究

董帮少^1,3, 周少雄^1,2, 支起铮³, 邢彦兴², 杨富尧⁴, 乔光尧⁴, 韩钰⁴

1. 安泰科技股份有限公司，北京 100081;
2. 江苏集萃安泰创明先进能源材料研究院有限公司，江苏常州 213032;
3. 东北大学材料与冶金学院，辽宁沈阳 110004;
4. 全球能源互联网研究院有限公司，北京 102209

收稿日期:2020-08-10 修回日期:2020-12-22 出版日期:2022-02-28 发布日期:2022-02-23
作者简介:董帮少（1981—），男，博士，高级工程师，从事非晶纳米晶软磁材料基础研究及应用开发，E-mail：dongbangshao@126.com;周少雄（1955—），男，通信作者，博士，高级工程师（教授级），从事非晶纳米晶材料技术及应用、绿色能源材料技术及应用研究，E-mail：sxzhou@atmcn.com
基金资助:
国家重点研发计划资助项目(2017YFB0903903)；国家自然科学基金资助项目（51971093）

Heat-Treatment Optimizing Study on Soft Magnetic Properties of FeCuNbSiB Nanocrystalline Alloys

DONG Bangshao^1,3, ZHOU Shaoxiong^1,2, ZHI Qizheng³, XING Yanxing², YANG Fuyao⁴, QIAO Guangyao⁴, HAN Yu⁴

1. Advanced Technology & Materials Co., Ltd., Beijing 100081, China;
2. Jiangsu JITRI Advanced Energy & Materials Research Institute Co., Ltd., Changzhou 213032, China;
3. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China;
4. Global Energy Interconnection Research Institute Co., Ltd., Beijing 102209, China

Received:2020-08-10 Revised:2020-12-22 Online:2022-02-28 Published:2022-02-23
Supported by:
This work is supported by the National Key R&D Program of China (No.2017YFB0903903) and the National Natural Science Foundation of China (No.51971093).

摘要/Abstract

摘要： 为满足大容量高频变压器对大尺寸纳米晶铁芯低损耗需求，探索了50 mm高纳米晶铁芯的热处理工艺，研究了2种典型纳米晶合金Fe_73.5Cu₁Nb₃Si_15.5B₇和Fe_73.5Cu₁Nb₃Si_13.5B₉（简称B₇和B₉）的热处理温度（330~600℃）对铁芯静态和动态磁性能的影响规律。结果表明：B₇和B₉合金在420℃退火已开始纳米晶化，要远早于通常认为的500℃。2种合金分别在550、580℃退火具有最低的铁芯损耗；而分别在500、550℃退火具有最优的静态磁性能，即最高的磁导率和最低的矫顽力。经施加横向磁场退火后，B₇合金的损耗进一步降低，$P_{\rm{cm}} $（0.5T/20k）达到7.3W/kg，为目前报道的最低铁芯损耗。根据系列数据建立了铁芯损耗分形公式为$ {\mathit{P}}_{\rm{cm}}=0.5{\mathit{f}}^{1.42}{{\mathit{B}}_{{\rm{m}}}}^{2.27} $，预测的准确性得到了实验结果的验证。

关键词: 纳米晶合金, 损耗, 退火温度, 大容量高频变压器, 分形

Abstract: This job was focused on the annealing technique of large-size nanocrystalline core with height of 50 mm, to meet the low core loss requirement of large-size nanocrystalline core used in large-capacity high-frequency transformer. Two typical nanocrystalline alloys, Fe_73.5Cu₁Nb₃Si_15.5B₇ and Fe_73.5Cu₁Nb₃Si_13.5B₉ ribbons (hereinafter referred to as B₇ and B₉) with the width of 50 mm, were selected to investigate the influence of annealing temperatures (330~600℃) on their soft magnetic properties and core losses. The experimental results were demonstrated that B₇ and B₉ alloys probably started to crystallize as early as annealed at 420 ℃, which is much lower temperature than the widely-held at 500 ℃. The two alloys were obtained the lowest core losses by being annealed at 550℃ and 580℃, respectively. However, they showed the highest permeability and the lowest coercivity when annealed at 500℃ and 550℃, respectively. The core losses of B₇ alloy was continued to reduce through by transversal field annealing, and the lowest value of P_cm(0.5T/20k) was 7.3W/kg, which is the lowest as far as we know. According to the measured data, the core losses of nanocrystalline magnetic core can be described by $ {P}_{{\rm{cm}}}=0.5{f}^{1.42}{{B}_{{\rm{m}}}}^{2.27} $ in fractional method, and has been confirmed by experimental results.

Key words: nanocrystalline alloy, core loss, annealing temperature, large-capacity high-frequency transformer, fractional method

董帮少, 周少雄, 支起铮, 邢彦兴, 杨富尧, 乔光尧, 韩钰. FeCuNbSiB纳米晶合金软磁性能的热处理工艺调控研究[J]. 中国电力, 2022, 55(2): 200-208.

DONG Bangshao, ZHOU Shaoxiong, ZHI Qizheng, XING Yanxing, YANG Fuyao, QIAO Guangyao, HAN Yu. Heat-Treatment Optimizing Study on Soft Magnetic Properties of FeCuNbSiB Nanocrystalline Alloys[J]. Electric Power, 2022, 55(2): 200-208.

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FeCuNbSiB纳米晶合金软磁性能的热处理工艺调控研究

Heat-Treatment Optimizing Study on Soft Magnetic Properties of FeCuNbSiB Nanocrystalline Alloys

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FeCuNbSiB纳米晶合金软磁性能的热处理工艺调控研究

Heat-Treatment Optimizing Study on Soft Magnetic Properties of FeCuNbSiB Nanocrystalline Alloys

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