| The aim of this work was to study the influence of iron substitution by vanadium in amorphous and nanocrystalline Fe73.5-xVxCu1Nb3Si13.5B9 (x=1, 3, 5, 7) alloys on their structure and magnetic properties. We present our structural study of amorphous alloys prepared by melt spinning method. The structure of the samples was characterized by X-ray powder diffraction (XRD) and TEM. The structure stabilities and the structure evolution at a high temperature were addressed by the in-situ XRD experiment in DESY Hamburg. Experimental results reveal the influence of vanadium content on both magnetic and structural properties. Nanocrystalline state of the samples was confirmed by the presence of ultra-fine Fe(V)3Si phase with Fm3m space group. It was observed that the higher vanadium content, the higher crystallization temperature of Fe(V)3Si phase has been observed. Vanadium also influenced the crystallization temperature of the V3B2 and Fe2B phase. Magnetic properties reflect the observed structural changes. |
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