|About this Abstract
||7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
||Multiscale Modeling of Metal Vaporization/Condensation in Manufacturing Processes
||Scott Muller, Andrew Ritzmann, Floyd Hilty, W Steven Rosenthal, Lance Hubbard, Matthew Olszta
|On-Site Speaker (Planned)
There are a variety of manufacturing processes where plumes of metal vapor are produced as a byproduct. The composition, size, and shape of particles condensed from metal vapor may provide information in optimizing the associated manufacturing processes and conditions. Selective laser melting is a well-defined process that we use as a surrogate for manufacturing techniques that generate particles through the condensation of metal vapor. We present the development of a multiscale model for particle formation by condensation of metal vapor generated during selective laser melting. This consists of coupling (1) thermal modeling of laser-induced metal melting and volatilization, (2) fluid dynamics modeling of the metal vapor plume, and (3) phase field modeling of metal condensation. The phase field model accounts for vapor/liquid/solid phase transitions under non-isothermal conditions. This work is informed by and validated with laser melting experiments, with investigations of plume evolution and microscopy of generated particles.