Magnetic Properties and Phase Constitution of the Nanocrystalline Fe65Pr9B18W8 Alloy Ribbons
K. Filipeckaa,b, P. Pawlik a, A. Kozdraś c, J. Filipecki b, K. Pawlik a, and J.J. Wysłocki a
aInstitute of Physics, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Armii Krajowej 19, 42-200 Częstochowa, Poland
bInstitute of Physics, Faculty of Mathematics and Natural Science, Jan Dlugosz University, Armii Krajowej 13/15, 42-200 Częstochowa, Poland
cDepartment of Physics, Faculty of Production Engineering and Logistics, Opole University of Technology, Ozimska 75, 45-370 Opole, Poland
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The aim of the present work was to investigate the phase constitution and magnetic properties of the rapidly solidified Fe65Pr9B18W8 alloy ribbons in the as-cast state and subjected to annealing. The base alloy was prepared by arc-melting of the high purity elements under the Ar atmosphere. The ribbon samples were obtained by the melt-spinning technique under a low pressure of Ar. The studies have shown an amorphous structure of the ribbon in the as-cast state and its soft magnetic properties. Annealing at various temperatures for 5 min resulted in an evolution of the phase constitution that caused changes in magnetic properties of the alloy. The crystallization behavior was studied using differential scanning calorimetry. In order to determine the phase composition of annealed ribbons, X-ray diffractometry was used. The evolution of microstructure and phase constitution was verified by the Mössbauer spectroscopy. The magnetic properties were determined from hysteresis loops measured by a vibrating sample magnetometer in the external magnetic field up to 2 T at room temperature.

DOI: 10.12693/APhysPolA.131.1207
PACS numbers: 75.50.Ww, 75.50.Kj, 71.20.Eh