About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
|
Presentation Title |
Dose Dependence of Grain Boundary Radiation-induced Segregation in Fe-Ni-Cr Alloys |
Author(s) |
Daniele Fatto Offidani, Emmanuelle Marquis |
On-Site Speaker (Planned) |
Daniele Fatto Offidani |
Abstract Scope |
Radiation-induced segregation (RIS) can negatively impact the resistance of materials to stress corrosion and oxidation, especially when it occurs on grain boundaries. While RIS strongly depends on alloy chemistry and irradiation conditions, our quantitative understanding of RIS in complex alloys remains limited. One of the limitations to developing our understanding of this phenomenon is the small amount of available systematic experimental data. Here, we explore the use of ion irradiation to probe both the dose and chemical composition dependence of RIS. Specifically, we characterized the evolution of RIS with dose (up to 50 dpa) and the impact of Mn and/or Co on grain boundary chemistry using four ion-irradiated single-phase Fe-Ni-Cr-based alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Environmental Effects, Characterization |