Analysis of the Nanocrystalline Phase Formation Process in Amorphous Fe-X-Si-B Alloys |
| Z. Stokłosa, P. Kwapuliński, J. Rasek, J. Ilczuk and J. Lelątko Institute of Physics and Chemistry of Metals, Silesian University, Bankowa 12, 40-007 Katowice, Poland |
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| The process of nanocrystalline phase formation, affecting magnetic properties, in amorphous Fe78Si8B14, Fe76Al2Si8B14, Fe76Cr2Si8B14 and Fe76Mo2Si8B14 alloys has been studied in the paper. Investigations have been carried out using the electrical resistivity method, magnetic methods, transmission electron microscopy and X-ray diffraction. A nanocrystalline phase in the amorphous matrix has been obtained by isochronous or isothermal vacuum annealing. Phase composition of samples has been determined directly after manufacturing and after crystallization annealing on the basis of X-ray diffraction and electron diffraction. Transmission electron microscopy was used to determine phase morphology, dimensions of formed nanocrystalline phase and transition phase. Alloying elements have been found to affect changes of magnetic properties in amorphous and nanocrystalline states. For Fe76Mo2Si8B14 alloys a significant increase in crystallization temperature, making difficult nanocrystalline phase growth and increase in thermal stability of magnetic permeability have been observed. |
| DOI: 10.12693/APhysPolA.89.437 PACS numbers: 75.50.-y, 72.15.-v |