| About this Abstract |
| Meeting |
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Symposium
|
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Presentation Title |
Development of an Acoustic Levitation Based Contactless Metrological Apparatus: Applications to Surface Tension and Viscosity Measurements of Low Melting Temperature Ga Droplets |
| Author(s) |
Herve Strozyk, Thibault Quatravaux, Pierre Chapelle, Jonathan Martens, Julien Jourdan |
| On-Site Speaker (Planned) |
Herve Strozyk |
| Abstract Scope |
Aerospace engine efficiency is directly linked to the hot source temperature. Due to the very high temperature and mechanical stresses, turbine blades and discs have to be manufactured using alloys with exceptional high temperature properties. Nickel-based superalloys combine these properties. Conventional manufacturing processes are expensive, so manufacturers are promoting digital design methods. But numerical models rely on accurate thermophysical databases to be effectively representative of real processes. Due to the high chemical reactivity of nickel-based superalloys, viscosity and surface tension measurements are difficult. We have developed a non-contact laser-powered melting furnace, based on the acoustic levitation phenomenon, to perform these measurements on samples in liquid form. In order to develop this complex device, we have already carried out some measurements on low melting point Sn-Pb alloys. This first phase of development has allowed us to identify improvements to be made in order to levitate high melting point reactive alloys. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |