About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Qualification Methods for Nuclear Reactor Structural Materials
|
| Presentation Title |
Understanding corrosion mechanisms of structural alloys in light water reactor environments: An in-situ X-ray diffraction imaging study |
| Author(s) |
Sayantan Mondal, David Simonne, Anthony Albert Harrup, Riley Hultquist, Wojciech Roseker, Jiantao Zhao, Ericmoore Jossou |
| On-Site Speaker (Planned) |
Sayantan Mondal |
| Abstract Scope |
The challenging operating chemistry of the Light Water Reactors (LWRs) require immediate attention to ensure the life extension of existing LWRs and the successful deployment of the next generation of reactors. While traditional corrosion characterization techniques, such as potentiometric measurements, provide valuable quantitative data, they are unable to resolve nanoscale phenomena at the solid-liquid interface or capture the real-time evolution of lattice defects during the corrosion process. This talk will focus on the use of in-situ coherent X-ray diffraction imaging techniques to investigate corrosion processes in model nickel metal. We will discuss, how corrosion-induced lattice defects evolve over time in both pristine and irradiated Ni under simulated LWR conditions and discuss on the formation of lattice defects due to prolonged exposure to normal water chemistry, as well as the radiolytic effects caused by the intense X-ray beam. These fundamental insights will guide the design of corrosion and radiation-resistant alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Copper / Nickel / Cobalt |