About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
Modeling Inherent Anisotropic Deformation Behavior of Laser Powder Bed Fusion (LPBF) Manufactured Metals for Different Laser Beam Shapes |
Author(s) |
Venkatesh Ananchaperumal, Istemi Ozsoy, Daniel Moore, Fadi Aabdeljawad, Srikanth Pilla, Gang Li |
On-Site Speaker (Planned) |
Venkatesh Ananchaperumal |
Abstract Scope |
The ability of the laser powder bed fusion (LPBF) manufacturing process to fabricate complex geometries and functional structures has opened new avenues for design and manufacturing. However, the anisotropic deformation behavior resulting from the layer-by-layer deposition process presents challenges in achieving desired mechanical properties and consistency across different orientations. This variation in anisotropic deformation is simulated using dislocation-based crystal plasticity models by considering dislocation gliding and pinning across the grain boundaries. A coupled thermal transport-Monte Carlo model simulates more realistic grain structures by predicting the evolution of temperature fields and grain microstructures for different spatially extended laser beam profiles. The effects of different beam types on the process-property-microstructure relationships are reported, and it offers opportunities for further advancements in controlling the deformational anisotropicity of 3D printed materials. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Computational Materials Science & Engineering |