About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Modeling, Simulation and Artificial Intelligence
|
| Presentation Title |
F-36: Predictive Multi-Physics Multi-Material Design of Refractory Materials in Laser Powder Bed Fusion Additive Manufacturing |
| Author(s) |
Jang Griffin, Honghao Ge, Chinnapat Panwisawas |
| On-Site Speaker (Planned) |
Jang Griffin |
| Abstract Scope |
Laser powder bed fusion (PBF-L) in situ manufacturing of refractory metal alloys is complex due to the vast difference of thermophysical properties. Manufacturing these alloys is highly resource consuming; therefore, accommodating this, a multi-physics multi-material model is developed to predict the final composition of the in-situ alloy PBF-L. Understanding and manufacturing optimisation of TiTa, TiW, TiNb, TiMo, TiHf and TiRe with 0-50 wt.% will be studied. The model incorporates multi-physics phenomena such as Marangoni’s flow, keyhole recoil pressure, multi-phase transformations, multi-reflection ray tracing, absorptivity change based on ray tracing, vaporisation mass loss, powder-based properties and powder dynamics. An in-depth understanding of melt-pool dynamics is aimed to develop strategies to improve the chemical homogeneity and calculate vaporisation mass loss to determine the initial composition required. Results from the thermal model are coupled with a thermal mechanical model to predict areas of potential cracking via solidification in relation to alloy composition. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Titanium, |