The amorphous-crystalline transition in Fe84B16 alloys prepared by melt spinning and high-energy ball milling was studied. Time-resolved X-ray diffraction showed that the kinetics of transition into a crystalline state depends on the method of preparing a metastable alloy. In amorphous Fe84B16 alloy prepared by melt spinning, crystallization proceeded within a time period of below 1 s and was accompanied by the formation of eutectic α-Fe–Fe3B. At temperatures above 600°C, metastable phase Fe3B was found to transform into Fe2B and α-Fe. In the high-energy ball milling produced alloy, structural changes were accomplished in 4–8 s and the transition into a state with a perfect crystalline structure was caused by the growth of nanocrystallites formed during processing.
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The work was supported by the State-supported research program for the Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences (no. 44.1).
The authors declare that they do not have any conflicts of interest.
Translated by O. Golosova
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Kovalev, D.Y., Shkodich, N.F., Vadchenko, S.G. et al. Influence of the Preparation Method on Amorphous-Crystalline Transition in Fe84B16 Alloy. Tech. Phys. 64, 1808–1813 (2019). https://doi.org/10.1134/S1063784219120119