2014•arXiv (Cornell University)Open access

Viscosity and relaxation processes of the liquid become amorphous Al-Ni-REM alloys

Lad`yanov, V. I., Bel`tyukov, A. L., Svetlana Gennadievna Menshikova, Mikhail Gennag'evich Vasin

Abstract

The temperature and time dependencies of viscosity of the liquid alloys, Al87Ni8Y5, Al86Ni8La6, Al86Ni8Ce6, and the binary Al-Ni and Al-Y melts with Al concentration over 90 at.% have been studied. Non-monotonic relaxation processes caused by destruction of nonequilibrium state inherited from the basic-heterogeneous alloy have been found to take place in Al-Y, Al-Ni-REM melts after the phase solid-liquid transition. The mechanism of nonmonotonic relaxation in non-equilibrium melts has been suggested.

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Key concepts: Thermodynamics, Non-equilibrium thermodynamics, Relaxation (psychology), Viscosity, Alloy, Liquid state, Materials science, Amorphous solid