|About this Abstract
||Liquid Metal Processing & Casting Conference (LMPC 2019)
||Liquid Metal Processing & Casting
||Surface Tension, Viscosity and Specific Heat Capacity of Ni-based Superalloys MC2, LEK94 and CMSX-10 in the Liquid Phase Measured in the Electromagnetic Levitator (EML-ISS) on Board the International Space Station
||Markus Mohr, Rainer K Wunderlich, Hans-Jörg Fecht
|On-Site Speaker (Planned)
Nickel-based superalloys combine high temperature strength, creep resistance and toughness, and hence find application in turbines for land-based power generators as well as in aircraft engines. The used casting process is time consuming and costly, making it necessary to perform supporting simulations of the heat and material flow in the melt. This models require good input data of thermophysical properties in the solid and liquid phase.
Measurement of surface tension, viscosity and specific heat of liquid metals is challenging, due to the melts high solution reactivity. The method of choice is electromagnetic levitation, a containerless method. However, gravitational forces have to be absent to obtain a spherical droplet with controlled fluid flow conditions. We will present and discuss measurements of surface tension, viscosity and specific heat capacity, performed in the Material Science Laboratory Electromagnetic Levitator (ISS-EML) on board the European Space Laboratory Columbus in the international space station (ISS).
||Definite: At-meeting proceedings