| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
2024 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-32: Design and Tailoring of a Novel High-entropy Alloy for Additive Manufacturing |
| Author(s) |
Sertac Altinok, Yunus Eren Kalay |
| On-Site Speaker (Planned) |
Sertac Altinok |
| Abstract Scope |
Engineering materials have been developed based on conventional processes where the cooling rates are typically below 10^3 K/s as opposed to additive manufacturing by which few available alloys are processable. In this respect, we aimed to tackle a comprehensive approach to the experimental development of genuine high entropy alloys (HEAs), process conditions for novel compositions for L-PBF, and functional-graded HEAs by the arc-DED process. CoFeNiCuMn was developed using in-house generated software based on different thermodynamic and -kinetic models. The four-step methodology for determining L-PBF process conditions encompasses assessing melt pool stability, soundness, mechanical properties, and dimensional accuracy. Additionally, the conditions of functional-graded CoFeNiCuMn-Cr by arc-DED were revealed by the determination of melt pool dimensions using ST onto Cr substrate, calculation of feeding rate considering melt pool size and alloying Cr element, and characterization including X-ray Diffraction, Electron Backscatter Diffraction, and Transmission Electron Microscopy analyses. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, High-Entropy Alloys, Characterization |