Abstract
X-ray diffraction, Mössbauer spectroscopy, and measurements of the dynamic magnetic susceptibility have been used to investigate phase states of the Fe72.6C24.5O1.1N1.8 alloy at different stages of the mechanosynthesis (MS) in a planetary ball mill. The introduction of impurities of O and N into an Fe75C25-based alloy changes the sequence of the formation of phases during MS: instead of Fe3C, the Fe7C3 carbide is first to be formed. The processes of phase formation in the alloy preliminarily subjected to MS have unidirectional nature upon the continuation of the MS and upon annealings and are determined by the interaction of the alloy components with one another under the effect of the accumulated excess energy. The phase compositions of the MS alloys depend on the conditions of the dynamic equilibrium between the crystalline and amorphous phases.
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Original Russian Text © V.A. Volkov, I.A. El’kin, A.V. Zagainov, A.V. Protasov, E.P. Elsukov, 2014, published in Fizika Metallov i Metallovedenie, 2014, Vol. 115, No. 6, pp. 593–601.
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Volkov, V.A., El’kin, I.A., Zagainov, A.V. et al. Dynamic equilibria of phases in the processes of the mechanosynthesis of an alloy with composition Fe72.6C24.5O1.1N1.8 . Phys. Metals Metallogr. 115, 557–565 (2014). https://doi.org/10.1134/S0031918X14060143
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DOI: https://doi.org/10.1134/S0031918X14060143