About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Interrelated Extremes in Materials Degradation for Fission and Fusion Environments
|
| Presentation Title |
Understanding Synergistic Degradation Mechanisms in Nuclear Materials through Coupled Environment Testing |
| Author(s) |
Rongjie Song, Wei-Ying Chen, Adrien Couet, Charlie Hirst, Peng Wang |
| On-Site Speaker (Planned) |
Rongjie Song |
| Abstract Scope |
Nuclear structural materials in service are subjected to complex and often synergistic degradation mechanisms arising from the combined effects of irradiation, mechanical stress, corrosion, and elevated temperatures. Traditional single-factor testing fails to capture the interactive nature of these stressors. To address this gap, Nuclear Science User Facilities (NSUF) offer integrated platforms that enable coupled environment testing, combining multiple degradation modes under controlled and quantifiable conditions. This presentation highlights recent advances in multimodal testing capabilities within NSUF, including in-situ observation of microstructural evolution under irradiation; in-situ irradiation to monitor corrosive attack in coolant environments; in-situ irradiation and mechanical testing; and test methods for synergistic effects of superimposed extreme environments on materials behaviors. The work not only informs mechanistic models for lifetime prediction but also guides the development of more robust, radiation-tolerant materials. By supporting collaborative, high-impact research, NSUF plays a pivotal role in accelerating innovation for current and advanced nuclear technologies. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Nuclear Materials, |