Influence of rare earth elements on crystallization of Fe82Nb2B14RE2 (RE = Y, Gd, Tb, and Dy) amorphous alloys |
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| Authors: | A Chrobak V Nosenko L Boichyshyn B Kotur |
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| Institution: | a Institute of Physics, Silesian University, 4 Uniwersytecka, 40-007 Katowice, Polandb G.V.Kurdyumov Institute for Physics of Metals, NAS of Ukraine, Kyiv, Ukrainec University of Silesia, Institute of Materials Science, 12 Bankowa, 40-007 Katowice, Polandd Ivan Franko National University of Lviv, Kurula and Mefodis St. 6, 79005 Lviv, Ukraine |
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| Abstract: | The work concerns influence of rare earth elements on crystallization of Fe82Nb2B14RE2 (RE = Y, Gd, Tb, and Dy) group of amorphous alloys. The samples were obtained by typical melt spinning technique. The crystallization studies were carried out with the use of (i) differential scanning calorimetry (DSC) in the temperature range from 300 K to 850 K with different heating rates and (ii) standard magnetic balance (Faraday type). The crystalline structure before and after the first stage of crystallization were checked by XRD and HRTEM techniques. The measurements allow the determining crystallization temperatures, activation energies of crystallization, average size of nanograins formed during crystallization and the Curie temperatures. In the paper all the obtained results are widely discussed in the context of different rare earth alloying additions. |
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| Keywords: | Amorphous materials Crystallization Iron-based alloys Rare earth |
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