About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Materials Science and Engineering of Materials in Nuclear Reactors
|
Presentation Title |
A Micromechanics-based Modeling Approach to Predict the Mechanical Properties of Zircaloy with Hydride Precipitates |
Author(s) |
Varun Gupta, Yulan Li, Shenyang Hu, Arun Devaraj, David Senor |
On-Site Speaker (Planned) |
Varun Gupta |
Abstract Scope |
The formation of hydride precipitates in zirconium-based alloys have a significant impact on their strength and ductility. The heterogeneous microstructures in these Zircaloys limit the application of phenomenological or smeared continuum damage models for accurately predicting their mechanical performance. In this work, a microstructure-based finite element modeling framework has been developed to predict the mechanical properties of Zircaloy. Quantitative microstructural details extracted from scanning electron microscopy (SEM) images was used to generate heterogeneous microstructures including the morphology and spatial distribution of hydrides. The talk will also feature a phase field modeling approach to study stress-enhanced hydrogen diffusion and hydride formation in polycrystalline Zirconium, and material property degradation. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |