The methods of optical and scanning electron microscopy and x-ray spectrum microanalysis are used to study and to compare the special features of formation of metastable trialuminides under rapid crystallization of superheated melts of the Al – Hf – Sc and Al – Hf – Ti systems. Heating of such melts by over 100°C above the liquidus temperature yields Aln(Hf1–xScx) and Aln(Hf1–x Tix) aluminides with a cubic lattice of structural type L12.
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Here and below in the paper the content of elements is given is atomic percent.
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The work has been performed within State Assignment to IMET UrO RAN and with the use of the equipment of the “Ural-M” Collective Use Center.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 38 – 42, December, 2019.
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Popova, E.A., Kotenkov, P.V. & Gilev, I.O. Formation of Metastable Aluminides in Alloys of Al – Hf – Sc (Ti) Systems. Met Sci Heat Treat 61, 782–786 (2020). https://doi.org/10.1007/s11041-020-00500-9
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DOI: https://doi.org/10.1007/s11041-020-00500-9