| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Side on Plasma Emission Spectroscopy of TiAl6V4 During Laser Scanning |
| Author(s) |
Ethan C. Sprague, Nicholas Calta, Erik Busby |
| On-Site Speaker (Planned) |
Ethan C. Sprague |
| Abstract Scope |
Significant focus has been placed on in-situ diagnostics for powder-based additive manufacturing, like Powder Bed Fusion (PBF) and Directed Energy Deposition (DED), using tools such as layer imaging and pyrometry over the last decade. Plasma Emission Spectroscopy is a technique which uses the spectra of the plasma plume which forms directly above the laser-metal interaction zone to study the sample below. A series of high-speed, side-on, and height-resolved spectra are taken for laser scanned TiAl6V4 plate, such that the spectra can be resolved in time and at 7 different heights above the melt pool. This data can be used to calculate the plasma temperature at different heights above the melt pool and study the stability of the plasma itself. Results show plasma temperatures generally decline with increased distance from build plate, and a high sensitivity to atmospheric quality of both plasma intensity and temperature. Prepared by LLNL under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |