| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Radiation Effects in Metals and Ceramics
|
| Presentation Title |
Neutron Radiation Damage of β Phase and its Impact on In-core Corrosion of Zr-Nb alloy |
| Author(s) |
Guanze He, Junliang Liu, Anne Callow, Jing Hu, Mir Anamul Haq, Sergio Lozano-Perez, Chris Grovenor |
| On-Site Speaker (Planned) |
Junliang Liu |
| Abstract Scope |
Zirconium alloys have been widely used as cladding materials in Water Cooled Reactors and one of the major degradation mechanisms is the water facing corrosion enhanced by neutron radiation. Among various types of zirconium alloys, β-phase containing Zr-Nb alloys have shown a relative good resistance to this radiation-enhanced corrosion, which is relative to the damage behaviour of β-Zr and β-Nb phases embedded in the metal Zr matrix under radiation. We have conducted a series experiments to study the damage of the β phases under radiation. These include using TEM in-situ heavy ion irradiation and Energy Dispersive X-Ray Spectroscopy (EDX) to study the damage mechanisms of β-Nb particles, and using Electron Energy Loss Spectroscopy (EELS) and Atom Probe Tomography (APT) to study the damage of β-Zr phase under neutron irradiation. We have shown the micro-chemical and micro-structural changes can be a beneficial factor to the in-core corrosion of the Zr-Nb alloys. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |