A phase-field model for hydride formation in polycrystalline metals: Application to δ-hydride in zirconium alloys
We report a phase-field model for simulating metal hydride formation involving large volume
expansion in single-and polycrystals. As an example, we consider δ-hydride formation in α …
expansion in single-and polycrystals. As an example, we consider δ-hydride formation in α …
Phase-field modeling of stacking structure formation and transition of δ-hydride precipitates in zirconium
GM Han, YF Zhao, CB Zhou, DY Lin, XY Zhu, J Zhang… - Acta Materialia, 2019 - Elsevier
Abstract δ-hydride structures in Zr nuclear fuel-rod cladding significantly affect mechanical
properties. A micromechanical phase-field model is developed to investigate the effect of …
properties. A micromechanical phase-field model is developed to investigate the effect of …
Formation path of δ hydrides in zirconium by multiphase field modeling
A multiphase field model is developed to study the effects of metastable ζ and γ hydrides on
the nucleation and growth of the stable δ hydrides in α zirconium matrix. The model …
the nucleation and growth of the stable δ hydrides in α zirconium matrix. The model …
Effects of intergranular hydride precipitation on the mechanical behavior of bicrystalline zirconium: a molecular dynamics-based study
This article investigated the impact of intergranular hydride precipitation on the mechanical
behavior of zirconium (Zr) bi-crystals using molecular dynamics (MD)-based simulations …
behavior of zirconium (Zr) bi-crystals using molecular dynamics (MD)-based simulations …
Combined molecular dynamics and phase field simulation investigations of crystal-melt interfacial properties and dendritic solidification of highly undercooled titanium
The effects of kinetic and capillary anisotropies on crystal morphology and growth rate
during solidification of titanium are studied using atomistically-informed phase field …
during solidification of titanium are studied using atomistically-informed phase field …
A phase-field model for non-isothermal phase transformation and plasticity in polycrystalline yttria-stabilized tetragonal zirconia
We propose an elastoplastic phase-field (PF) model to investigate the mechanics of
tetragonal-to-monoclinic phase transformation (TMPT) and elastoplastic deformation of …
tetragonal-to-monoclinic phase transformation (TMPT) and elastoplastic deformation of …
Quantifying the stress state in the vicinity of a δ-hydride in α-zirconium
In zirconium alloys, precipitation of a hydride generally introduces internal stresses in the
surrounding matrix. This study aims at understanding the role of internal stresses on the …
surrounding matrix. This study aims at understanding the role of internal stresses on the …
A fast efficient multi-scale approach to modelling the development of hydride microstructures in zirconium alloys
A mechanistic understanding of hydrogen diffusion and hydride precipitation at the
microscale underpins the prediction of delayed hydride cracking in zirconium alloy nuclear …
microscale underpins the prediction of delayed hydride cracking in zirconium alloy nuclear …
[HTML][HTML] A study of δ-hydride precipitation behavior in Zr alloys by phase-field method
M Wei, T Zhai, Y Wang, Z Zhang, K Wang… - Journal of Materials …, 2024 - Elsevier
A phase-field model combined with CALPHAD thermodynamic database was employed to
investigate the microstructure evolution of δ-hydride in Zr alloys during isothermal aging …
investigate the microstructure evolution of δ-hydride in Zr alloys during isothermal aging …
Phase-field modeling of hydride reorientation in zirconium cladding materials under applied stress
Zirconium cladding materials undergo hydride-related degradation during the dry storage of
spent nuclear fuel. We investigated the effects of not only internal stress due to the lattice …
spent nuclear fuel. We investigated the effects of not only internal stress due to the lattice …