Effect of Cr Addition on the Glass-Forming Ability, Magnetic, Mechanical and Corrosion Properties of (Fe_0.76Si_0.096B_0.096P_0.048)_100−xCr_x Bulk Glassy Alloys

抄録

The effect of Cr addition on the glass-forming ability (GFA), the magnetic properties, and corrosion resistance of (Fe_0.76Si_0.096B_0.096P_0.048)_100−xCr_x (x=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 3 mm was produced by copper mold casting. These BGAs exhibit a rather high saturation magnetization of 1.10–1.50 T and lower coercive force of 1.4–2.4 A/m. A significant 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.