About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Solid-State Processing and Manufacturing for Nuclear Applications: Integrating Insights and Innovations
|
| Presentation Title |
Dependence of Radiation Induced Segregation of Cr on Sink Dimensionality in Fe-Cr Alloys |
| Author(s) |
Mohammad Nahavandian, Enrique Martinez, Anter El-Azab |
| On-Site Speaker (Planned) |
Mohammad Nahavandian |
| Abstract Scope |
Radiation-induced segregation (RIS) and chemical redistribution in structural alloys can significantly degrade material performance, ultimately leading to failure. In this research, building upon the previous work by the authors, we investigate how the dimensional characteristics of sinks influence solute concentration distributions and segregation behavior. Specifically, we utilize the kinetic Monte Carlo (KMC) method to simulate atomic-scale diffusion and analyze segregation processes in an Fe–3\%Cr alloy. Our analysis includes three representative sink geometries: one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D), to capture the effects of sink dimensionality on Cr segregation at grain boundaries (GBs). Simulations are performed over a range of temperatures to assess thermal effects on Cr redistribution. The results reveal distinct segregation profiles and concentration gradients that appear largely unaffected by the sink dimensionality. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Nuclear Materials, High-Temperature Materials |