New Fe-based soft magnetic amorphous alloys with high saturation magnetization and good corrosion resistance for dust core application |
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| Affiliation: | 1. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;2. International Institute of Green Materials, Josai International University, Togane 283-8555, Japan;3. Department of Physics, King Abdulaziz University, Jeddah 22254, Saudi Arabia;1. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;2. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;3. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;1. CEIT-IK4 and Tecnun (University of Navarra), Pº Manuel de Lardizábal 15, 20018, San Sebastián, Spain;2. Escuela de Ingeniería Mecánica, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2950, Valparaíso, Chile;3. SGIker (Magnetic Measurements), University of the Basque Country, Av. Tolosa 72, 20018, San Sebastián, Spain;4. Department Materials Physics, Faculty of Chemistry, University of the Basque Country, Pº Manuel de Lardizábal 3, 20018, San Sebastián, Spain;1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, Liaoning 110870, China;2. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;3. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;4. Center for Advanced Structural Materials, Department of Mechanical and Biomedical Engineering, College of Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, China;1. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China;2. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China |
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| Abstract: | Fe-rich amorphous dust core alloys with minor-addition of Mo and/or Cr were synthesized because of the industrial request of mass production of high efficient low core loss Fe-based dust cores. It was found that the present Fe-(Cr, Mo)-P-B-Si-(C) amorphous alloy ribbons exhibit good soft magnetic properties of above 1.5 T for saturation magnetization, below 10 A/m for coercivity and rather good corrosion resistance in 3%NaCl aqueous solution. Besides, the amorphous alloy ribbons exhibit good bending ductility in as-spun and optimally annealed states. It is noticed that these characteristics are much superior to those for commercial Fe-Cr-Nb-P-B-Si soft magnetic dust core alloy (SENNTIX). In addition, the annealing treatment was noticed to cause the improvement of corrosion resistance without detriment to bending ductility. The new Fe-based soft magnetic alloys with good combined characteristics are expected to be used as the basic material as high-efficient soft magnetic dust cores in a high frequency range. |
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| Keywords: | Soft magnetic alloy Amorphous alloy Corrosion resistance Structural relaxation |
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