The methods of metallographic, differential thermal and x-ray phase analysis, light and electron microscopy, and measurement of microhardness are used to study the morphological features of the structure of hypereutectic alloy Al – 30 at.% Cu formed due to cooling of liquid phase at a rate of about 2 and about 104 K/sec after superheating above the liquidus. A comparative study of structural and phase transformations in castings is performed.
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Notes
The authors gratefully acknowledge the help of V. V. Astaf’ev (IFM UrO RAN) with the metallographic analysis and of L. A. Romanova (FTI UrO RAN) with the differential thermal analysis.
Here and below in the paper the content of elements is given in atomic percent.
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The study has been performed with financial support of the Russian Foundation for Basic Research within Scientific Project No. 15-02-06288 a and the Program for Integration Fundamental Research of the Ural Branch of the Russian Academy of Sciences within State Assignment No. 01201463331.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 3 – 8, March, 2017.
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Men’shikova, S.G., Brodova, I.G., Shirinkina, I.G. et al. A Study of the Effect of Temperature and Rate of Cooling Under Crystallization on the Structure of Cast Alloy Al – 30 at .% Cu. Met Sci Heat Treat 59, 133–138 (2017). https://doi.org/10.1007/s11041-017-0116-y
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DOI: https://doi.org/10.1007/s11041-017-0116-y