| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
A-59: The Characterization of CoCrFeMnCu High Entropy Alloy Powders Produced by Gas Atomization for Powder-based Additive Manufacturing Processes |
| Author(s) |
Sertaç Altınok, Yunus Kalay |
| On-Site Speaker (Planned) |
Sertaç Altınok |
| Abstract Scope |
The interest in high entropy alloys has leaped with the improvements in additive manufacturing (AM) maturity due to the local performing process that leads to an increased cooling rate enhancing the stability of high entropy alloys and reducing the segregation. Powder bed fusion (PBF) is the most widely used metal AM process in the aerospace industry in order to promote high design flexibility resulting in maximizing the mass savings for parts. However, PBF AM needs to have spherical powder feedstock with definite particle requirements to build high-performance parts. In this study, the empirical and thermodynamic-based prediction models were used to determine CoCrFeMnCu high entropy alloy and its powders were produced by gas atomization followed by sieving to obtain four different particle size ranges. In order to reveal the effect of undercooling and solidification rates, XRD and TEM were used for phase analysis and microstructural investigation at various particle sizes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, High-Entropy Alloys, Additive Manufacturing |