自由面状态对铁基非晶合金结构和性能的影响

doi:10.13251/j.issn.0254-6051.2025.12.033

金属热处理 ›› 2025, Vol. 50 ›› Issue (12): 211-217.DOI: 10.13251/j.issn.0254-6051.2025.12.033

自由面状态对铁基非晶合金结构和性能的影响

闫胜男¹, 廉洁¹, 黎文强², 王登峰¹, 张锁¹, 王坦³

1.河南开放大学机电工程与智能制造学院, 河南郑州 450008;
2.河南省煤科院耐磨技术有限公司, 河南郑州 450001;
3.郑州大学材料科学与工程学院, 河南郑州 450001

收稿日期:2025-07-10 修回日期:2025-10-22 发布日期:2026-01-06
通讯作者: 张锁,讲师,博士,E-mail: zhangsuo@haou.edu.cn
作者简介:闫胜男(1987—),女,讲师,硕士,主要研究方向为电气设备的应用,E-mail: yanshengnan@haou.edu.cn。
基金资助:
河南开放大学博士科研启动基金(BSJH-2024-08);国家自然科学基金青年科学基金(52101203);河南省科技攻关项目(252102210040,252102220029);河南省高等学校重点科研项目(26B413008)

Effect of free surface state on microstructure and properties of Fe-based amorphous alloys

Yan Shengnan¹, Lian Jie¹, Li Wenqiang², Wang Dengfeng¹, Zhang Suo¹, Wang Tan³

1. School of Mechanical and Electrical Engineering & Intelligent Manufacturing, Henan Open University, Zhengzhou Henan 450008, China;
2. Henan Coal Science Academy Wear-resistant Technology Co., Ltd., Zhengzhou Henan 450001, China;
3. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou Henan 450001, China

Received:2025-07-10 Revised:2025-10-22 Published:2026-01-06

摘要/Abstract

摘要： 选取临界形成能的Fe_82+xSi₁B₁₂C_5-x (x=0,1)合金,采用单辊熔融纺丝法,通过调整辊速(20 m/s和40 m/s)制备了不同自由面状态的非晶带材,并对其进行不同温度的去应力退火处理。利用X射线衍射仪、差示扫描量热仪、透射电镜及直流软磁测量装置对非晶带材的微观结构、热稳定性和磁性能进行了分析。结果表明,提高辊速,带材非晶化程度增加,且铁含量越高,非晶合金的晶化焓越高。在辊速为40 m/s下获得的铸态x=0带材为非晶结构,x=1非晶带材自由面出现晶化。经340 ℃退火处理后,x=1非晶带材表面形成单层晶化结构,该结构降低x=1非晶带材的钉扎场,使x=1非晶带材的矫顽力降至4.7 A/m,磁性能提升。

关键词: 铁基非晶合金, 表面晶化, 钉扎场, 磁性能, 热稳定性

Abstract: Fe_82+xSi₁B₁₂C_5-x (x=0, 1) alloys located at the critical formation energy boundary were selected for investigation, and the amorphous ribbons with varying free surface states were fabricated by using the single-roller melt-spinning technique and adjusting the roller speed (20 m/s and 40 m/s), followed by stress relief annealing at different temperatures. The microstructure, thermal stability, and magnetic properties of the resulting amorphous ribbons were systematically characterized via X-ray diffraction, differential scanning calorimetry, transmission electron microscope, and direct current soft magnetic measurements. The results indicate that increasing the roller speed leads to a higher extent of amorphization, and the higher the iron content, the greater the crystallization enthalpy of the amorphous alloy. At roller speed of 40 m/s, the as-cast ribbon(x=0) exhibits an amorphous structure, and the free surface of the amorphous ribbon(x=1) undergoes partial crystallization. After annealing at 340 ℃, a single-layer crystalline phase forms on the surface of the ribbon(x=1), resulting in a reduction of the pinning field, a decrease of coercivity to 4.7 A/m and an increase of magnetic properties.

Key words: Fe-based amorphous alloys, surface crystallization, pinning field, magnetic properties, thermal stability

中图分类号:

TG139

闫胜男, 廉洁, 黎文强, 王登峰, 张锁, 王坦. 自由面状态对铁基非晶合金结构和性能的影响[J]. 金属热处理, 2025, 50(12): 211-217.

Yan Shengnan, Lian Jie, Li Wenqiang, Wang Dengfeng, Zhang Suo, Wang Tan. Effect of free surface state on microstructure and properties of Fe-based amorphous alloys[J]. Heat Treatment of Metals, 2025, 50(12): 211-217.

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自由面状态对铁基非晶合金结构和性能的影响

Effect of free surface state on microstructure and properties of Fe-based amorphous alloys

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