| 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 |
Optimizing the Surface Texture and Chemistry of Laser Powder Bed Fusion (LPBF) Haynes
282 for Increased Solar Absorptance |
| Author(s) |
Junwon Seo, Andrea Ambrosini, Erfan Rasouli, Ansel August Blumenthal, Vinod Narayanan, Anthony D. Rollett |
| On-Site Speaker (Planned) |
Junwon Seo |
| Abstract Scope |
The topology and chemistry of surfaces play a crucial role in dictating the overall properties of the material, especially for samples with high surface-to-volume ratios. The ability to control the surface characteristics becomes useful for additive manufacturing since the process can be used to fabricate complex geometries with a high surface area. In this research, we investigate ways to induce various textures and chemistry on the surface of Haynes 282 fabricated by LPBF. Samples are fabricated with various combinations of infill and contour parameters as well as different CAD geometries and are gone through post-processing steps. Topological features are extracted by applying computer vision techniques to optical profilometer measurements and computed tomography data, whereas diffraction experiments are utilized to obtain the chemical information of various surfaces. We show that our methods are effective in modifying surface characteristics by measuring the optical absorptance of the samples. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |