Ductile Fe-Based Bulk Metallic Glass with Good Soft-Magnetic Properties

Tao Zhang; Fengjuan Liu; Shujie Pang; Ran Li

doi:10.2320/matertrans.48.1157

Tao Zhang, Fengjuan Liu, Shujie Pang, Ran Li

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Keywords: Iron-based alloy, metallic glass, ductility, soft-magnetic property

JOURNAL FREE ACCESS

2007 Volume 48 Issue 5 Pages 1157-1160

DOI https://doi.org/10.2320/matertrans.48.1157

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Abstract

We report a ductile Fe-Mo-P-C-B bulk metallic glass (BMG) with good soft-magnetic properties. The Fe-Mo-P-C-B BMG with high Poisson’s ratio of 0.325 and low glass transition temperature of 708 K exhibits plastic strain up to 5.5% before final failure and high fracture strength of 3280 MPa in compression. The Fe-based BMG possesses high saturation magnetization of 1.1 T, low coercive force of 1.8 Am⁻¹ and high permeability of 55300. The Fe-Mo-P-C-B BMG with this combination of noticeable ductility, high strength and good soft-magnetic properties previously not observed simultaneously in Fe-based glassy alloys has promising potential in functional and structural applications.

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