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An aluminum-based AlNiZr ternary alloy containing 11 at.% Ni and 5 at.% Zr was modified by substitution of 5% of nickel by either iron or vanadium. Melt spun ribbons were cast under a protective helium atmosphere from 99.9% pure elements at 35 m s −1  linear rate of the copper wheel of the melt spinner. X-ray diffraction studies confirmed that most of the volume of all cast ribbons is amorphous showing a broad amorphous halo, however all alloys have shown a small amount of crystalline α(Al) solid solution. The same phase was identified in quaternary alloys. The ribbons showed high microhardness near 500 HV. Transmission electron microscopy studies enabled identification of a large number of spherical crystals of α(Al) solid solution of size near 200 nm in AlNiZr ribbons, containing less solute elements than the amorphous phase. In alloys with iron and vanadium additions crystallites were larger in the form of discontinuous lamellar precipitates. Differential scanning calorimetric studies enabled identification of a multistage crystallization mechanism and the additions of iron and vanadium caused an increase in crystallization temperatures as compared to ternary AlNiZr alloy

Effect of Fe and V additions on amorphous structure formation in melt spun AlNiZr alloys