|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Thermodynamic Applications, Optimizations and Simulations in High-Temperature Processes: An EPD Symposium in Honor of Christopher W. Bale's 70th Birthday
||NN-1: Experimental and Numerical Investigation of Tantalum Recycling by Electron Beam Melting
||Katia Vutova, Vania Vassileva, Elena Koleva, Nagegownivari Munirathnam
|On-Site Speaker (Planned)
Investigations are carried out and experimental and theoretical data dealing with the relation of process parameters and impurities’ concentration for tantalum recycling by electron beam melting (EBM) in vacuum are presented. Different technological regimes (different power inputs and heating times) are realized and results are discussed. A chemical analysis is performed, refining kinetics characteristics are theoretically evaluated and mechanisms at EB refining are discussed. Process conditions for EBM of the refractory metal tantalum are investigated applying a developed non-stationary heat model and simulation data about the temperature field, liquid pool variation, energy losses, etc. is thus obtained. Statistical approach is applied for estimation of the material losses and the liquid pool geometry based on experimentally obtained data. The numerical model and optimization problems are used to analyze and compare experiments and simulation data and to aid in understanding and optimizing electron beam melting.
||Planned: TMS Journal: Metallurgical and Materials Transactions