Effect of Cr Addition on the Glass-Forming Ability, Magnetic, Mechanical and Corrosion Properties of (Fe0.76Si0.096B0.096P0.048)100-xCrx Bulk Glassy Alloys

The effect of Cr addition on the glass-forming ability (GFA), the magnetic properties, and corrosion resistance of (Fe0.76Si0.096 B0.096P0.048)(100) Cr, (sic) 0. 2, 4 and 6) bulk glassy alloys (BGAs) with high Fe contents was investigated. 4% Cr addition makes the alloy composition to approach towards a eutectic point, which could result in an increase in the GFA. The BGA rod with diameters up to 3mm was produced by copper mold casting. These BGAs exhibit a rather high saturation magnetization or 1.10-1.50 T and lower coercive force of 1.4 - 2.4 A/m. A sipnificant improvement in corrosion resistance was observed with increasing Cr content. Furthermore, these Fe- based BGAs exhibit super high strength of -3.3 GPa and Young's modulus, of 168 GPa. [doi: 10.2320/matertrans.MRA2008279]