The influence of the features of flux-free melting on the structure and properties of magnesium alloy VMD16 in cast condition is studied. It is shown that the chosen protective atmospheres used in the melting lower effectively the presence of harmful impurities in the alloy and improve substantially its corrosion resistance. Independently on the melting conditions, the alloy acquires a specific phase composition. However, the flux-free melting yields a net of nanosize (less than 1 nm) zinc zirconides. The strength characteristics of the alloy in cast condition increase by 9 – 15%.
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The structure was studied in cooperation with E. V. Filoniva and A. V. Zavodov.
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The work has been performed within implementation of scientific direction 8.4 “High-Strength Corrosion Resistant Weldable Magnesium and Castable Aluminum Alloys for New-Generation Articles for Aircrafts and Spacecrafts” (“Strategic Directions of Advancement of Materials and their Processing for up to 2030”) [1].
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 18 – 25, August, 2021.
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Volkova, E.F., Mostyaev, I.V., Akinina, M.V. et al. Special Features of the Effect of Flux-Free Melting on the Structure and Properties of Magnesium Alloy VMD16 in Cast Condition. Met Sci Heat Treat 63, 419–425 (2021). https://doi.org/10.1007/s11041-021-00705-6
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DOI: https://doi.org/10.1007/s11041-021-00705-6