|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Computational Materials Science and Engineering for Nuclear Energy
||Competition of Deformation Modes in Irradiated Zr Alloys: A Micromechanical Approach
||Pierre-Alexandre Juan, Remi Dingreville
|On-Site Speaker (Planned)
Irradiated zirconium alloys have been shown to form cleared, defect-free bands when strained as a result of the occurrence of basal and pyramidal dislocation channels. The formation and propagation of such channels depends on both the texture and the loading conditions (strain path and temperature).
The present work focuses on the study of the competition that exists between slip, twinning and dislocation channeling in Zr alloys as a function of temperature and dose effects. A dislocation-based and irradiation dependent crystal plasticity model is implemented in a fully elasto-plastic self-consistent (EPSC) scheme.
The present micromechanical approach is used to characterize the softening and the strain localization phenomena induced by the formation of dislocation channels as a function of the deformation modes based on temperature and dose.
||Planned: Supplemental Proceedings volume