EXAFS-Investigations of Amorphous Iron-Based Metal Alloy

L. I. Karbivska, V. A. Artemyuk, V. L. Karbivskyy, A. P. Soroka

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03680 Kyiv-142, Ukraine

Received: 09.02.2017. Download: PDF

Short-range order in amorphous iron-based metal alloys is investigated by the EXAFS-spectroscopy method. According to EXAFS study, the increase of the content of Co atoms in the amorphous metal alloy (AMA) of Fe–Co–B system leads to decrease of the radius of first coordination sphere of the B atom and reduction of the unit-cell volume in a crystalline alloy (Co,Fe)$_3$B that indicates a strengthening of transition-metal–boron bond. Results obtained by the EXAFS-spectroscopy for the Fe–Co–B and Fe–Cr–B AMAs can be well interpreted in terms of the model of the cluster microinhomogeneous AMA structure.

Key words: amorphous metal alloy, short-range order, radial distribution function (RDF) of atoms, extended x-ray absorption fine structure.

URL: http://mfint.imp.kiev.ua/en/abstract/v39/i04/0553.html

DOI: https://doi.org/10.15407/mfint.39.04.0553

PACS: 61.05.cj, 61.43.Dq, 61.66.Dk, 75.50.Kj, 78.40.Pg

Citation: L. I. Karbivska, V. A. Artemyuk, V. L. Karbivskyy, and A. P. Soroka, EXAFS-Investigations of Amorphous Iron-Based Metal Alloy, Metallofiz. Noveishie Tekhnol., 39, No. 4: 553—566 (2017) (in Russian)

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