| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials in Energy Environments
|
| Presentation Title |
Process Mapping on Representative Geometries Using SS316 with Varying C Content Fabricated by Laser Powder Bed Fusion |
| Author(s) |
Holden C. Hyer, Josh Kendall, David Collins, Amir Ziabari, Caleb Massey |
| On-Site Speaker (Planned) |
Holden C. Hyer |
| Abstract Scope |
Laser powder bed fusion (LPBF) processed SS316 contains a heterogenous microstructure with high chemical segregation and stochastic defects, raising concern on the potential impact to part performance. This study utilized a design of experiments approach to map the seven most influential parameters effect on defect evolution, microstructure, and properties of SS316 compositions with varying C content using representative geometries — including a bulk base, thin-walled fins, and overhang structures. Post printing, the samples were subjected to X-ray computed tomography and Archimedes immersion testing to measure density. In conjunction, thin disks were sectioned from the bulk specimen and characterized using a small punch test as a rapid method for gauging the room temperature tensile properties. Select samples were metallographically prepared for optical and scanning electron microscopy. Ultimately, a processing window could be identified that can be confidently applied for component fabrication from LPBF-processed SS316, regardless of geometry or C content. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Nuclear Materials |