The phase composition and microstructure of Sm – Fe alloys obtained by vacuum induction melting of the elements are studied near the stoichiometry of Sm2F17 by the methods of scanning electron microscopy, local microanalysis and x-ray analysis. The possibility of coherent junction of all the phase components of an ingot is analyzed with the help of representation of the crystal structures of all intermetallics of the Sm – Fe system in terms of coordination polyhedrons. It is shown that long-term annealing at a high temperature (for 30 h at 1150°C) does not remove from the structure of the ingot the regions of metallic samarium formed due to the peritectic type of solidification of the Sm2Fe17 intermetallic.
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References
Y. Otani, D. P. F. Hurley, Sun Hong, and J. M. D. Coey, “Magnetic properties of a new family of ternary iron nitrides R2Fe17N3-δ (invited),” J. Appl. Phys., 69(8), 15 April (1991).
K. H. J. Buschow, “The samarium – iron system,” J. Less-Common Met., 25, 131 – 134 (1971).
J. F. Sadoc and R. Mosseri, “Icosahedral order, curved space and quasicrystals, in extended icosahedral structures,” Aperiodicity and Order, 3, 163 – 188 (1989).
P. I. Kripyakevich, Structural Types of Intermetallic Compounds [in Russian], Nauka, Moscow (1977), 288 p.
Ya. S. Umanskii, B. M. Finkel’shtein, M. E. Blanter, et al., Physical Metallurgy [in Russian], Metallurgizdat, Moscow (1955), 724 p.
Ya. S. Umanskii, L. M. Utevskii, and R. I. Éntin, Transformations in Iron and Steel [in Russian], Nauka, Moscow (1977), 236 p.
V. S. Kraposhin, A. L. Talis, and J. M. Dubois, “Structural realization of the polytope approach for the geometrical description of the transition of a quasicrystal into a crystalline phase,” J. Phys. Condes. Matter, 14, 8987 – 8996 (2002).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 23 – 27, October, 2016.
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Buryakov, I.N., Kamynin, A.V., Éverstov, A.A. et al. Microstructure of an Ingot of Sm2Fe17 Intermetallic and its Homogenization. Met Sci Heat Treat 58, 603–607 (2017). https://doi.org/10.1007/s11041-017-0063-7
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DOI: https://doi.org/10.1007/s11041-017-0063-7