Thermophysical Properties of a Fe-Cr-Mo alloy in the Solid and Liquid State

Abstract

Results of a thermophysical characterization of a Fe-Cr-Mo alloy in the solid and liquid state are reported. Methods applied include calorimetry, dilatorimetry; the laser flash technique for theraml diffusivity, and ultrasound pulse echo for the measurement of the room temperature sound velocities and elastic constants. Density in the liquid phase and surface tension were measured by optical dilatometry and by the oscillating drop method on electromagnetic levitated specimen. In addition, surface tension and viscosity were measured by the oscillating drop method on board parabolic flights under reduced gravity conditions. The methods applied and results obtained are presented. This work represents a collaborative effort, including round robin measurements in different laboratories for a characterisation of the basic thermophysical properties needed for process simulation.