Abstract
Grain boundary wetting transitions were previously observed in the Al–Mg system. The melting of as-cast Al–5 wt% Mg and Al–10 wt% Mg alloys was studied by the differential scanning calorimetry. The asymmetric shape of the melting curve permitted the observation of the thermal effect of grain boundary wetting. The difference in the shape of the melting curve for the two studied alloys is explained by the different temperature dependence of the fraction of completely wetted grain boundaries.
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Acknowledgements
Authors thank the Russian Foundation for Basic Research (contract 11-03-01198), Program of bilateral cooperation between Russian and Polish Academies of sciences, the grant of President of Russian Federation for young scientists (MK-3748.2011.8), and Polish National Science Centre (grant UMO-2011/01/M/ST8/07822) for the financial support. Authors cordially thank Prof. R.Z. Valiev and Dr. A. Gornakova for stimulating discussions.
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Kogtenkova, O.A., Protasova, S.G., Mazilkin, A.A. et al. Heat effect of grain boundary wetting in Al–Mg alloys. J Mater Sci 47, 8367–8371 (2012). https://doi.org/10.1007/s10853-012-6786-3
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DOI: https://doi.org/10.1007/s10853-012-6786-3