| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
2023 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-55: Modeling of Non-equilibrium Phenomena in Laser Additive Manufacturing Using Molecular Dynamics |
| Author(s) |
Gurmeet Singh, Veera Sundararaghavan |
| On-Site Speaker (Planned) |
Gurmeet Singh |
| Abstract Scope |
Additive manufacturing of a single crystalline metallic column is studied using molecular dynamics simulations. In our previous work, a melt pool is incrementally added and cooled to a target temperature under isobaric conditions to build a metallic column. We investigated the microstructure evolution of the solidified column and looked at the influence of cooling rate, powder bed temperature, and effect of added inclusion on the defects. In this work, we use the tight-binding DFT potentials to model multi-component alloy systems and the use of this approach to investigate the laser-atom interactions. Current laser-matter interaction models use two-temperature classical potentials that do not capture the electronic effects accurately. With DFT tight binding dynamics, we study how the laser interacts with various atom types in higher detail. We study the role that inclusions play in laser and matter interaction. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Computational Materials Science & Engineering, Additive Manufacturing, Modeling and Simulation |