|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Computational Materials Science and Engineering for Nuclear Energy
||Hydrogen Transport and Trapping in Irradiation Damaged Zirconium Alloys
||Jonathan Hannay, Jared Tannenbaum, Jesse J. Carter, Richard Smith, Bruce Kammenzind
|On-Site Speaker (Planned)
Hydrogen transport in Zirconium based alloys is central to processes such as hydride formation, hydrogen induced deformations and delayed hydride cracking. Accurate modeling of hydrogen diffusion and the balance between hydrogen in solution and the hydride phase requires a detailed understanding of the effects of microstructure and irradiation damage on migration and trapping. Experimental results obtained on materials damaged by heavy ion bombardment are being used alongside atomistic and electronic structure calculations as well as rate-theory models of microstructural evolution to provide a mechanistic description of transport in irradiated alloys, with emphasis on the role of point defect clusters and <a>-type loops as traps. The models are used within finite element simulations, based in ABAQUS and MOOSE, in the prediction of hydrogen transport related to in-pile corrosion, hydrogen charging of test samples and proton bombardment experiments.
||Planned: Supplemental Proceedings volume