New Fe-based soft magnetic amorphous alloys with high saturation magnetization and good corrosion resistance for dust core application. (September 2016)

• Record Type: Journal Article
• Authors: Han, Y.; Kong, F.L.; Han, F.F.; Inoue, A.; Zhu, S.L.; Shalaan, E.; Al-Marzouki, F.
• Is Part Of: Intermetallics. Volume 76(2016:Sep.)
• Page Start: 18
• Page End: 25
• Publication Date: 2016-09
• Subjects: Soft magnetic alloy -- Amorphous alloy -- Corrosion resistance -- Structural relaxation; Intermetallic compounds -- Metallography -- Periodicals; Metallic glasses -- Periodicals; Composés intermétalliques -- Métallographie -- Périodiques; 669.94
• DOI: 10.1016/j.intermet.2016.05.011
• Languages: English
• ISSNs: 0966-9795

Abstract

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. Highlights: Fe-rich amorphous dust core alloys with good characteristics as compared with commercialized SENNTIX alloys are synthesized. The ribbons exhibit good soft magnetic properties of above 1.5 T for saturation magnetization and below 10 A/m for coercivity. The annealing treatment was noticed to cause the improvement of corrosion resistance without detriment to bending ductility.