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Soft Magnetic Properties of Ring-Shaped Fe-Co-B-Si-Nb Bulk Metallic Glasses
Journal of Magnetics, Volume 16, Number 4, 31 Dec 2011, Pages 431-434
Abstract
The reduction of the Nb content in the (Fe0.75B0.20Si0.05)96Nb4 bulk metallic glass (BMG) has been studied. The glass-forming ability (GFA) is reduced by decreasing the Nb content, but it can be enhanced by replacing partially Fe by Co. Furthermore, the saturation magnetization of the (Fe0.8Co0.2)76B18Si3Nb3 BMG is 1.35 T, being with 13% larger than that of the base alloy (Fe0.75B0.20Si0.05)96Nb4 . (Fe0.8Co0.2)76B18Si3Nb3 BMG exhibits slightly larger B800 (the magnetic flux density at 800 A/m) and smaller core losses (20%-30%) compared with the commercial Fe-6.5 mass% Si steel.
Keywords: bulk metallic glasses; soft magnetic properties; magnetization; coercivity; permeability; core losses
DOI: http://dx.doi.org/10.4283/JMAG.2011.16.4.431
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