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Influence of the Preparation Method on Amorphous-Crystalline Transition in Fe84B16 Alloy

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Abstract

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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Funding

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).

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Correspondence to D. Yu. Kovalev.

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The authors declare that they do not have any conflicts of interest.

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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

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