About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Investigating the Influence of Low Laser Power on Microstructure–Property Relationships in 15-5 PH Stainless Steel Processed Via Laser Powder Bed Fusion |
| Author(s) |
Zackery Ungaro, Amit Choudhari, James Elder, Tushar Borkar, Ganesh Walunj |
| On-Site Speaker (Planned) |
Zackery Ungaro |
| Abstract Scope |
15-5 PH stainless steel is used in aerospace, defense, and tooling for its strength, corrosion resistance, and hardenability. Additive Manufacturing (AM), particularly Laser Powder Bed Fusion (L-PBF), provides unique capabilities to fabricate complex geometries of 15-5 PH with localized control over processing parameters. While several studies have focused on optimizing volumetric energy density (VED), the discrete influence of individual parameters, particularly laser power in the low range (80 -180 W) and the different printing patterns, on microstructural evolution and anisotropic mechanical behavior remains largely unexplored. This proposal aims to fill this gap by studying the effects of varying low laser power while keeping the VED constant, thus decoupling the energy density from power-dependent physical phenomena such as melt pool dynamics, cooling rate, and phase transformation pathways. The hypothesis is that microstructural changes from varying laser powers at constant VED significantly impact mechanical anisotropy in XY and XZ directions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Process Technology |