| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
2025 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-61: Exploring Sustainably Sourced Nitrogen Gas for Metal 3D Printing Applications |
| Author(s) |
Caroline Dowling, Kyle Tsaknopoulos , Danielle Cote |
| On-Site Speaker (Planned) |
Caroline Dowling |
| Abstract Scope |
Carrier gases are commonly used in metal additive manufacturing (AM). To enhance the sustainability of AM processing, particularly cold spray, this work studies the effects of using lower purity nitrogen (N2) gas generated on-site compared to traditional high purity nitrogen transported from off-site. The objective was to validate that variations in these purity levels do not compromise the quality of cold sprayed deposits, thus demonstrating the feasibility of generated nitrogen as a carrier gas; nickel and chromium materials were studied. The powders and consolidated samples were characterized through moisture content, particle morphology, chemical composition, porosity analysis, Vickers microhardness, and nanoindentation. The results suggest that generated N2 of lower purity is a viable carrier gas for nickel powder, though the chromium powder had higher sensitivities to the depletion in purity. These results will further guide efforts to maintain the sustainability of cold spray while producing quality coatings of optimal mechanical properties. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Characterization, Powder Materials |