|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advanced Characterization and Modeling of Nuclear Fuels: Microstructure, Thermo-physical Properties
||Investigation of Damage Structure Evolution on Proton Irradiated Zr-alloys of Various Compositions Using Synchrotron X-ray Diffraction and TEM
||Ömer Koç, Tamas Ungár, Rebecca M.A. Jones, Hattie X.D. Xu, Robert Harrison, Michael Preuss, Philipp Frankel
|On-Site Speaker (Planned)
Irradiation induces displacement of atoms leading to vacancies, interstitials and eventually to dislocation loops in core materials, which affect the mechanical performance of these materials. Proton irradiation is increasingly used as a surrogate to costly neutron irradiation for studying irradiation-induced damage in materials and its effect on microstructure. Several different proton irradiated Zr binary, commercial Zircaloy-2 and Low-Sn ZIRLO were analysed using Synchrotron XRD in combination with sophisticated line profile analysis and TEM imaging methods. Significantly higher dislocation densities were observed in ZrNb binary alloys compared to non-Nb containing alloys. Additionally, pure Zr or Zr only containing interstitial elements were found to have a high fraction of <a> type dislocation loops but overall lower dislocation density compared to the other alloys.
||Nuclear Materials, Other,