Research Information System
MODERN PHYSICS LETTERS B, vol.40, no.02, 2026 (SCI-Expanded, Scopus)
The purpose of this study is to investigate the structural and phase evolution of Fe92Si(6)C(2) amorphous alloys under thermal annealing and to understand the mechanisms that govern their crystallization behavior. To achieve this, Fe-Si-C amorphous ribbons were synthesized using the melt-spinning method and subsequently annealed at different temperatures. Their phase composition, crystallization process, and structural parameters were systematically examined using X-ray diffraction (XRD) analysis combined with Rietveld refinement. The study revealed that the as-prepared samples retained a fully amorphous structure up to 673K, with only minor nanoscale grain growth (14.4-16.2nm). A first-order phase transition and the onset of crystallization were observed at 773K, followed by significant growth of diffraction peaks and a rapid increase in grain size (409.3-427.2nm) between 773K and 973K. The structural refinement confirmed the formation and development of the Fe(Si) crystalline phase, accompanied by long-range atomic ordering and temperature-dependent variations in lattice parameters. These findings provide new insights into the crystallization mechanisms of Fe92Si(6)C(2) alloys, highlighting their thermal stability and structural transformation pathways, which are crucial for tailoring their performance in technological applications.