| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Towards High-Throughput Assessment of Printability in Refractory Alloys Systems for Laser-Powder Bed Fusion |
| Author(s) |
Peter Morcos, Brent Vela, Cafer Acemi, Alaa Elwany, Ibrahim Karaman, Raymundo Arroyave |
| On-Site Speaker (Planned) |
Peter Morcos |
| Abstract Scope |
Due to the brittle nature of refractory alloys, their development has been limited by difficulties associated with their processing by conventional means. However, due to their high melting temperature and high cracking susceptibility, their Laser-powder bed fusion (L-PBF) processing is challenging. Therefore, predicting the printability of refractory alloys rank order is critical.
In this work, we present a framework capable of predicting the printability of alloys in-silico. We demonstrate this framework by co-designing alloys for performance and amenability to L-PBF. Performance metrics are evaluated in a high-throughput manner within the alloy space then the alloys were filtered, yielding a tractable number of candidate alloys so they can be synthesized via arc-melting. Using CALPHAD-based property models and analytical thermal models, a suite of process-parameter informed printability criteria were calculated. These criteria were then used to rank the printability of the alloys using technique for order preference by similarity to ideal solution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, |