HTHP Home • Issue Contents • Forthcoming Papers

Viscosity of the binary system Al-Ni
Mirko Kehr, Michael Schick, Walter Hoyer and Ivan Egry

The binary system Al-Ni is a base of a whole class of materials called superalloys. Although widely used for high temperature applications, the thermophysical properties of this system are rather unknown due to experimental difficulties. To provide such data the viscosity of the liquid binary alloy Al-Ni has been measured at temperatures up to 2073K in the full concentration range. The isotherms exhibit maxima corresponding to the positions of the intermetallic phases in the phase diagram. The measured values are compared to several viscosity models and other thermophysical properties provided in literature. A good agreement to those values has been found.

Keywords: Alloy, aluminium, binary alloy, diffusion, nickel, thermodynamic properties, viscosity.

full text (IP)