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Nonmonotonous relaxation processes in nonequilibrium nanoforming alloys of Al with transition and rare-earth metals

  • Proceedings of the 9th All-Russia Conference “Physicochemistry of Superdispersed Nanosystems”
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The temporal dependences of viscosity in Al87Ni8Y5, Al86Ni8Ce6, and Al86Ni8La6 melts were measured at various temperatures after the solid-liquid phase transition. A nonmonotonous change in viscosity with the passage of time was found, due to the destruction of the nonequilibrium microheterogeneous state of melts inherited from the initial multiphase melts. We propose a mechanism of nonmonotonous relaxation of nonequilibrium microheterogeneous melts within the dynamical theory of a molecular field, assuming the emergence of a hierarchy of different relaxation times in the system. A theoretical temporal dependence of viscosity of melts is proposed that is qualitatively consistent with the experimental data.

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Authors and Affiliations

  1. Physics and Technical Institute, Russian Academy of Sciences, Ural Branch, Izhevsk, 426000, Russia

    V. I. Lad’yanov, M. G. Vasin & A. L. Bel’tyukov

  2. Udmurt State University, Izhevsk, 426034, Russia

    V. I. Lad’yanov, S. G. Menshikova & A. L. Bel’tyukov

  3. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, Kiev, 03680, Ukraine

    V. V. Maslov

Authors
  1. V. I. Lad’yanov
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  2. S. G. Menshikova
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  3. M. G. Vasin
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  4. A. L. Bel’tyukov
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  5. V. V. Maslov
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Corresponding author

Correspondence to V. I. Lad’yanov.

Additional information

Original Russian Text © V.I. Lad’yanov, S.G. Menshikova, M.G. Vasin, A.L. Bel’tyukov, V.V. Maslov, 2011, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2011, Vol. 75, No. 11, pp. 1514–1517.

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Lad’yanov, V.I., Menshikova, S.G., Vasin, M.G. et al. Nonmonotonous relaxation processes in nonequilibrium nanoforming alloys of Al with transition and rare-earth metals. Bull. Russ. Acad. Sci. Phys. 75, 1423–1426 (2011). https://doi.org/10.3103/S1062873811110177

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  • DOI: https://doi.org/10.3103/S1062873811110177

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