About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Real Time Imaging for Materials Science and Processing
|
| Presentation Title |
In-situ monitoring of preferential vaporization of SS316L during laser powder bed fusion |
| Author(s) |
Chuzhe Song, Anna C.M. Getley, Shishira Bhagavath, Kwan Kim, Yuhan Wang, Peter D. Lee, Chu Lun Alex Leung |
| On-Site Speaker (Planned) |
Chuzhe Song |
| Abstract Scope |
Laser Powder Bed Fusion (LPBF) uses high-power lasers to fuse metal powder layer by layer, enabling the creation of complex, customized parts with minimal waste, and alloys like SS316L stainless steel are commonly used in aerospace, biomedical, and automotive applications. However, preferential vaporization of volatile elements will alter the corrosion resistance, microstructure and mechanical properties of the final product. This study aims to investigate preferential vaporization of SS316L during LPBF by combining in situ laser induced breakdown spectroscopy (LIBS) with synchrotron X-ray imaging of melt pool dynamics. By correlating elemental emissions with melt pool stability, this work seeks to provide a deeper understanding of the relationship between process conditions and compositional variation. A process map was developed for SS316L to identify stable processing windows. The findings are expected to inform process control strategies that improve the reliability of LPBF-fabricated components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, |