Mo microalloying effect on the glass-forming ability, magnetic, mechanical and corrosion properties of (Fe0.76Si0.096B0.084P0.06)100-xMox bulk glassy alloys

The effect of Mo addition on the glass-forming ability (GFA), magnetic properties, mechanical properties and corrosion resistance of (Fe0.76Si0.096B0.084P0.06)100−xMox (x = 0, 2, 4 and 6 at.%) bulk glassy alloys (BGAs) with high Fe contents was investigated. The 2 at.% Mo addition makes the alloy composition approach towards a eutectic point, which could result in an increase in the GFA. The BGA rod with diameters up to 3.5 mm was produced by copper mold casting. These BGAs exhibit a rather high saturation magnetization of 0.98–1.51 T and lower coercive force of 1.7–2.1 A/m. A significant improvement in corrosion resistance was observed with microalloying Mo element in 1 N H2SO4 solution. Furthermore, these Fe-based BGAs show super-high strength of ∼3.3 GPa and Young's modulus of 200 GPa.

► The BGA rod with diameters up to 3.5 mm was produced by copper mold casting.
► These BGAs exhibit a rather high saturation magnetization of 0.98-1.51 T.
► These BGAs exhibit lower coercive force of 1.7-2.1 A/m.
► A significant improvement in corrosion resistance was observed.
► These BGAs show super-high strength of ∼3.3 GPa and Young's modulus of 200 GPa.