Viscosity of liquid Al–Co alloys with a cobalt content up to 15 at %
| Autor: | A. Yu. Korepanov, S. G. Men’shikova, V. I. Lad’yanov, A. L. Bel’tyukov |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Arrhenius equation Materials science Relative viscosity Intrinsic viscosity General Engineering Inherent viscosity Thermodynamics Liquidus Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Condensed Matter::Materials Science symbols.namesake Viscosity Temperature dependence of liquid viscosity 0103 physical sciences symbols Reduced viscosity |
| Zdroj: | High Temperature. 54:667-674 |
| ISSN: | 1608-3156 0018-151X |
| Popis: | By means of the torsional vibrations method, the temperature dependences (from the liquidus up to 1200°C) of the kinematic viscosity of liquid aluminum and Al–Co melts with a cobalt content up to 15 at % were obtained. For all the liquid alloys investigated, the temperature dependences of the viscosity obtained in the heating and cooling regimes coincide. The temperature dependences were approximated by the Arrhenius equation. For liquid aluminum and melts with a cobalt content below 1.4 at % inclusive, a viscosity polytherm deviation from the Arrhenius dependence was discovered. The viscosity dependences on the concentration at a fixed temperature and the activation energy of the viscous flow were plotted. An increase in the cobalt content in the melt results in an increase in the viscosity and the activation energy of the viscous flow values. |
| Databáze: | OpenAIRE |
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