|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Application of Solidification Fundamentals to Challenges in Metal Additive Manufacturing
||Phase-field Modeling of Solidification under SLM Conditions
||Guillaume Boussinot, Jonas Zielinski, Markus Apel
|On-Site Speaker (Planned)
During Selective Laser Melting (SLM), the process parameters yield large temperature gradients and cooling rates as solidification conditions. We perform phase-field simulations of the solidification in Inconel718 under these extreme conditions and compare the simulated microstructures with experimental results. Thermal boundary conditions for the local phase-field simulations on the micrometer scale have been derived from continuum scale simulations of the laser melting. While the resulting average cellular/dendritic primary spacing matches relatively well with experiments (despite the out-of-equilibrium nature of the solidification), we find some features, e.g. an inhomogeneous primary spacing, of the microstructure that are inherent to the SLM conditions.
||Planned: Supplemental Proceedings volume