| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Special Topics in Nuclear Materials: Lessons Learned; Non-Energy Systems; and Coupled Extremes
|
| Presentation Title |
Influence of Radiation Swelling on Residual Stresses and Measurement of Micromechanical Properties |
| Author(s) |
Alexander Leide |
| On-Site Speaker (Planned) |
Alexander Leide |
| Abstract Scope |
The drawbacks of ion irradiations to replace neutron irradiations are generally well acknowledged, and methods have been developed to account for dose rate or characterising small volumes of material. Radiation defect induced swelling is an important phenomenon which has generally been neglected in post irradiation characterisation of ion irradiated materials. Ion irradiated layers are thin films constrained by a substrate, therefore swelling is anisotropic and causes residual stresses between the substrate and thin film. These stresses can cause defects to evolve differently due to creep, potentially resulting in different radiation defects, and different measured micromechanical results. Examples of the effects of swelling stress on micromechanical and spectroscopic measurements will be shown, along with residual stress measurements on ion irradiated materials, and potential effects on lift-out characterisation techniques such as TEM will be discussed. The potential for exploiting or controlling radiation-induced residual stresses in engineering components beneficially will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Nuclear Materials, Ceramics |