Preliminary communication

Modelling of non-metallic particles motion process in foundry alloys

P. L. Żak ; AGH University of Science and Technology, Faculty of Foundry Engineering,Kraków, Poland
D. Kalisz ; AGH University of Science and Technology, Faculty of Foundry Engineering,Kraków, Poland
J. Lelito ; AGH University of Science and Technology, Faculty of Foundry Engineering,Kraków, Poland
M. Szucki ; AGH University of Science and Technology, Faculty of Foundry Engineering,Kraków, Poland
B. Gracz ; AGH University of Science and Technology, Faculty of Foundry Engineering,Kraków, Poland
J. S. Suchy ; AGH University of Science and Technology, Faculty of Foundry Engineering,Kraków, Poland

Abstract

The behaviour of non-metallic particles in the selected composites was analysed, in the current study. The calculations of particles floating in liquids differing in viscosity were performed. Simulations based on the Stokes equation were made for spherical SiC particles and additionally the particle size influence on Reynolds number was analysed.The movement of the particles in the liquid metal matrix is strictly connected with the agglomerate formation problem.Some of collisions between non-metallic particles lead to a permanent connection between them. Creation of the two spherical particles and a metallic phase system generates the adhesion force. It was found that the adhesion force mainly depends on the surface tension of the liquid alloy and radius of non-metallic particles.

Keywords

zinc alloys; aluminium; foundry; metal matrix composites (MMC); SiC particles

Hrčak ID:

128961

URI

https://hrcak.srce.hr/128961

Publication date:

1.4.2015.

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