| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
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| Symposium
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Accelerated Materials Evaluation for Nuclear Applications Utilizing Irradiation and Integrated Modeling
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| Presentation Title |
High-Throughput Synthesis and Ion Irradiation of High-Entropy Alloys using Additive Manufacturing |
| Author(s) |
Michael J. Moorehead, Michael Niezgoda, Calvin Parkin, Chuan Zhang, Phalgun Nelaturu, Mohamed Elbakhshwan, Kumar Sridharan, Dan Thoma, Adrien Couet |
| On-Site Speaker (Planned) |
Michael J. Moorehead |
| Abstract Scope |
Development of materials for nuclear application often entails a rigorous series of testing and characterization which can encumber the pursuit of potentially novel materials. Such materials include high-entropy alloys (HEAs): multicomponent alloys which often exhibit desirable mechanical and radiation-tolerant properties. While several HEAs have shown excellent phase stability and irradiation resistance, the origins of these properties are still unclear – further challenging nuclear HEA development. In light of this, high-throughput (i) synthesis, (ii) ion irradiation, and (iii) characterization techniques have been employed to accelerate HEA development. Additive manufacturing was used to synthesize 25-coupon arrays of different alloys from the Cr-Fe-Mn-Ni and Mo-Nb-Ti-V composition spaces, from binary to quaternary alloys, using elemental powders. Sample arrays were irradiated with self-ions to 10 dpa and characterized using nano-indentation, XRD and profilometry measurements. Phase evolution has been supported by CALPHAD modeling and compositional trends in radiation response have been compared to theory and literature. |
| Proceedings Inclusion? |
Undecided |