| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Designing Complex Microstructures through Additive Manufacturing
|
| Presentation Title |
Enhancing Alloy Development for Additive Manufacturing Through Combinatorial High-Throughput Experimentation |
| Author(s) |
Sertaç Altınok, Umut Can Gülletutan, Koray Yurtışık, Yunus Kalay |
| On-Site Speaker (Planned) |
Yunus Kalay |
| Abstract Scope |
Additive manufacturing (AM) enables complex designs and eliminates size constraints inherent in traditional methods, producing parts with superior properties due to fine microstructures formed by high cooling rates. Researchers aim to expand the range of alloys compatible with AM. In this respect, this study employs a combinatorial high-throughput experimentation approach, focusing on the intrinsic alloying of chromium (Cr) to equiatomic CoFeNiCuMn high entropy alloy (HEA) during the Directed Energy Deposition (DED) process to achieve compositional variation within a single sample. EDS and nanoindentation techniques reveal the precise composition exhibiting the highest hardness of 990 HV within the composition domain. Additionally, transmission electron microscopy (TEM) analysis explores the dual-phase microstructure, characterized by the nanoprecipitation of FCC particles within the BCC matrix, and its impact on the alloy’s properties. The potential of the combinatorial approach for enhancing compositional and microstructural control to develop new alloys optimized for AM processes will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Entropy Alloys, Phase Transformations |