A comparative study on the lamella effect and properties of atomized iron powder and reduced iron powder in Fe-based soft magnetic composites

被引：0
|
作者：
Yang, Zhenjia [1 ,3 ]
Luo, Zigui [1 ,3 ]
Jin, Qi [1 ,3 ]
Fan, Xi'an [1 ,2 ,3 ]
Wu, Zhaoyang [4 ]
Wang, Jian [5 ,6 ]
Li, Guangqiang [1 ,3 ]
机构：
[1] The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan,430081, China
[2] National-Provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan University of Science and Technology, Wuhan,430081, China
[3] Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan,430081, China
[4] Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Anhui University of Technology, Ma'anshan,243002, China
[5] Guangdong Institute of Materials and Processing, Guangdong Academy of Sciences, Guangzhou,510650, China
[6] National Engineering Research Center of Powder Metallurgy of Titanium＆Rare Metals, Guangdong Academy of Sciences, Guangzhou,510650, China
来源：
Materials Science and Engineering: B | 2025年 / 311卷
基金：
中国国家自然科学基金;
关键词：
Eddy current testing - Iron powder - Iron powder metallurgy - Magnetic susceptibility - Samarium alloys;
D O I：
10.1016/j.mseb.2024.117844
中图分类号：
学科分类号：
摘要：
We prepared Fe soft magnetic composites (SMCs) with lamellar structure by using the flaky Iron powder, and studied the effects of types of iron powder on the microstructure and properties of Fe SMCs. The results show that the atomized iron powder and the reduced iron powder are deformed into flaky structure after ball milling, and these flaky iron powder have greater magnetic susceptibility and eddy current diameter perpendicular to the magnetic flux direction. In addition, compared with flaky gas atomized iron powder, the flaky reduced iron powder has large aspect ratio and lower coercivity. Therefore, the Fe SMCs with flaky reduced iron powder exhibit relatively high permeability (82) and low eddy current loss (0.033 W/kg at 50 kHz, 0.05 T), which shows the potential possibility of application at high frequency. © 2024 Elsevier B.V.
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