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Effect of composition on the crystallization and magnetic properties of Fe–Co–Si–B–Nb amorphous alloys

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Abstract

The crystallization behavior and magnetic properties of Fe62Co10Si15−xB18−yNb(x + y)−5amorphous alloys with x = 0–5 and y = 0–5 were examined. Primary crystallization temperature of Fe62Co10Si15−xB13Nbx and Fe62Co10Si10B18−yNbyalloys increased with the addition of Nb. The primary and secondary crystallization temperatures were well separated when the Nb content is above 4 at%. The alloys with 15–18 at% B showed a distinct supercooled region. The Nb addition decreased the Curie temperature as well as room temperature saturation magnetization. The glassy-type Fe62Co10Si10B18 alloy exhibited good soft magnetic properties as well as a supercooled liquid region of 39 K. The finding of the glassy-type Fe-based alloy without Nb element exhibiting high Bs above 1.4 T is promising for future use as a soft magnetic glass material.

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  1. Hyang-Yeon Kim

    Present address: R&D Team, ILJIN Electric Co., Ltd., Seoul, 121-040, Korea

Authors and Affiliations

  1. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan

    Hyang-Yeon Kim

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  1. Hyang-Yeon Kim
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Correspondence to Hyang-Yeon Kim.

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Kim, HY. Effect of composition on the crystallization and magnetic properties of Fe–Co–Si–B–Nb amorphous alloys. J Mater Sci 42, 2383–2386 (2007). https://doi.org/10.1007/s10853-006-1300-4

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  • DOI: https://doi.org/10.1007/s10853-006-1300-4

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