| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Elucidating Microstructural Evolution Under Extreme Environments
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| Presentation Title |
High Temperature Mechanical and Irradiation Response of a Refractory Alloy With a Isostructural Eutectic Microstructure |
| Author(s) |
Sriswaroop Dasari, Boopathy Kombaiah, Philip Petersen, Mukesh Bachhav |
| On-Site Speaker (Planned) |
Sriswaroop Dasari |
| Abstract Scope |
The next generation nuclear reactors demand structural materials that can withstand extreme irradiation, mechanical, and corrosion/oxidation environments. The materials being used in current generation reactors suffer from degradation phenomena such as high void swelling, poor creep strength, poor oxidation resistance, and embrittlement under such extreme environments. In this study, we investigated a candidate microstructure for such extreme environments, namely a mixture of ordered and disordered phases based on refractory metals. A 80Zr-20Ru (at.%) eutectic alloy was fabricated using arc melting. Electron microscopy results showed that the alloy is largely composed of two isostructural phases, BCC (disordered) and B2 (ordered). A third phase, -Zr was also found in minor phase fraction (<2%). The performance of this lamellar eutectic was investigated using compression testing and self-ion irradiation up to 600oC. The results of this study show the potential of refractory alloys for high temperature applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Nuclear Materials, |