New Fe-based soft magnetic amorphous alloys with high saturation magnetization and good corrosion resistance for dust core application

作者：Han, Y.; Kong, F. L.; Han, F. F.; Inoue, A.^*; Zhu, S. L.; Shalaan, E.; Al-Marzouki, F.

来源：Intermetallics, 2016, 76: 18-25.

DOI：10.1016/j.intermet.2016.05.011

• Soft magnetic alloy
• Amorphous alloy
• Corrosion resistance
• Structural relaxation

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%NaCi 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.

• 出版日期2016-9
• 单位天津大学