Abstract
The structure and phase composition of Al–Ca–Mg–Sc alloys containing 0.3 wt % Sc, up to 10 wt % Ca, and up to 10 wt % Mg have been investigated in the cast state and state after heat treatment. It has been shown that only binary phases Al4Ca, Al3Sc, and Al3Mg2 can be in equilibrium with the aluminum solid solution. It has been found that the maximum strengthening effect caused by the precipitation of Al3Sc nanoparticles for all investigated alloys is attained after annealing at 300–350°C.
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Original Russian Text © N.A. Belov, E.A. Naumova, T.A. Bazlova, E.V. Alekseeva, 2016, published in Fizika Metallov i Metallovedenie, 2016, Vol. 117, No. 2, pp. 196–203.
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Belov, N.A., Naumova, E.A., Bazlova, T.A. et al. Structure, phase composition, and strengthening of cast Al–Ca–Mg–Sc alloys. Phys. Metals Metallogr. 117, 188–194 (2016). https://doi.org/10.1134/S0031918X16020046
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DOI: https://doi.org/10.1134/S0031918X16020046