3 years ago

Effect of Si on the Glass Formation and Magnetic Properties of High-Iron Fe–Zr–Si Alloys

C. L. Yao, Y. Z. Yang, Wen Li, C. X. Xie

Abstract

High-iron Fe–Zr–Si amorphous ribbons were fabricated through the melt-spun technique. Then, the effects of Si content on the glass-forming ability and magnetic properties of Fe90−xZr10Six (x = 1, 2, 3, 4, 5, 10) alloys were investigated. Results showed that the amorphous structure only formed in an alloy composition of 3 at.% Si. Moreover, α-Fe(Si) and Fe3Zr phase appeared gradually when Si was added. Fe87Zr10Si3 alloy is a unique amorphous structure in Fe90−xZr10Six ribbons. The peak temperatures of the two crystallization stages were 464 and 600 C. The saturation magnetization (Ms) values of the alloys ranged from 91.2 to 132.3 emu/g, and all had an initial increase before decreasing and their coercivity (Hc) values increased with increased Si content. The Fe87Zr10Si3 amorphous alloy exhibited a low Hc value of approximately 39.1 A/m, which shows good magnetic properties in the as-quenched state. After annealing, the Ms of the amorphous sample considerably improved, particularly reaching 165.3 emu/g at 600 C.

Publisher URL: https://link.springer.com/article/10.1007/s10948-017-4545-z

DOI: 10.1007/s10948-017-4545-z

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