Fe-based nanocrystalline FeBCCu soft magnetic alloys with high magnetic flux density

Xingdu Fan, Aibin Ma, He Men, Guoqiang Xie, Baolong Shen, Akihiro Makino, Akihisa Inoue

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22 Citations (Scopus)

Abstract

In this study, the magnetic properties and crystalline behavior of Fe 84-xB10C6Cux (x= 0-1.3) alloys prepared by annealing the melt-spun ribbon have been investigated. A Cu element was added to this system with the aim of decreasing the coercivity because the addition of Cu clusters prior to the crystallization stimulates the nucleation of α-Fe primary crystals, which greatly influences the final microstructure. It is found that in the Fe84-xB 10C6Cux alloy system, the coercivity decreases with increasing x and exhibits a minimum at around x = 1.0. When x = 1.0, the alloy exhibits excellent magnetic properties after the appropriate heat treatment with a high Bs of 1.78 T, low Hc of 5.1 A/m, and low core loss less than 4.3 W/kg at 1.0 T and 400 Hz that is about 55 of that of oriented Si-steel. These results indicate that the application of this alloy to power transformers will produce very large energy savings.

Original languageEnglish
Article number07A314
JournalJournal of Applied Physics
Volume109
Issue number7
DOIs
Publication statusPublished - 2011 Apr 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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