| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Nuclear Applications II
|
| Presentation Title |
Development and Additive Manufacturing of ODS IN-718 Alloys for Nuclear Applications |
| Author(s) |
Eda Aydogan, Yesim Yalcin, Bora Derin, Bahattin Koc |
| On-Site Speaker (Planned) |
Eda Aydogan |
| Abstract Scope |
Oxide dispersion strengthened (ODS) ferritic and Ni-based alloys having sub-micron grain size with a high density of nano-oxides (NOs) (<10 nm) are considered to be good candidates for structural components in Generation IV nuclear systems. In this study, three different grades of ODS IN-718 alloys have been designed using CALPHAD-based thermochemical modeling approach and produced by Selective Laser Melting (SLM) method with various power and velocity values to determine the best process parameters. Besides, heat treatment studies have been conducted to maximize the NO formation. As a result, IN-718 alloys with ~1023 m-3 NO concentration have been obtained. Tensile tests demonstrate that the strength and ductility of these samples are much improved compared to the standard IN-718 samples, especially at elevated temperatures due to the fine and uniform microstructure. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Characterization |