The reversible and irreversible heat flow phenomena during the pre-crystallization relaxation process of amorphous Fe73.5Nb3Cu1Si13.5B9 alloy have been studied. The pre-crystallization and the initial stages of crystallization with the redistribution of the elements of a rapidly quenched alloy were studied using differential scanning calorimetry (DSC), thermomagnetic analysis (TMA), Mössbauer spectroscopy (MS) and X-ray diffraction (XRD). MS allowed us to detect the beginning of the formation of Fe-deficient areas as iron-rich nanocrystals were appearing. The peak at 5 T hyperfine field value was found to appear when the samples were annealed at 733 K. This effect corresponds to Fe-deficient areas, and, probably to Cu-enriched cluster, as well. On the basis of this detailed research we discuss the model of decomposition of the amorphous phase with the subsequent formation of iron-enriched nanocrystals.
CITATION STYLE
Jalnin, B. V., Kaloshkin, S. D., Kaevitser, E. V., Tcherdyntsev, V. V., & Obrucheva, E. V. (2005). The Initial Stage of Nanocrystallization in Fe-Cu-Nb-Si-B Ferromagnetic Alloys. In Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors (pp. 59–68). Springer-Verlag. https://doi.org/10.1007/1-4020-2965-9_5
Mendeley helps you to discover research relevant for your work.