A hydrogen diffusion model considering grain boundary characters based on crystal plasticity framework
K Li, B Tang, M Zhang, L Zhao, X Liu, J Fan… - International Journal of …, 2023 - Elsevier
The influence of grain boundaries (GBs) on hydrogen transportation is a crucial factor in
understanding the mechanisms of hydrogen embrittlement (HE) in polycrystalline alloys …
understanding the mechanisms of hydrogen embrittlement (HE) in polycrystalline alloys …
The micromechanics of fracture of zirconium hydrides
S Marashi, H Abdolvand - Acta Materialia, 2024 - Elsevier
Zirconium alloys are susceptible to hydrogen embrittlement and hydride precipitation. The
precipitation of hydrides is accompanied by a transformation strain, but the contribution of …
precipitation of hydrides is accompanied by a transformation strain, but the contribution of …
On the effects of transformation strain induced by hydride precipitation
One of the main degradation mechanisms of the zirconium alloys used in nuclear reactors is
hydrogen embrittlement and hydride formation. The formation of zirconium hydrides is …
hydrogen embrittlement and hydride formation. The formation of zirconium hydrides is …
Hydride-enhanced strain localization in zirconium alloy: A study by crystal plasticity finite element method
Hydride precipitation in zirconium (Zr) alloys leads to the deterioration of mechanical
properties in key components of nuclear reactors. However, the underlying mechanisms …
properties in key components of nuclear reactors. However, the underlying mechanisms …
The mode deformation effect on surface nanocrystalline structure formation and wear resistance of steel 41Cr4
A surface nanocrystalline steel layer in the low alloy steel 41Cr4 was fabricated by using
mechanical-pulse treatment (MPT) with different deformation modes. The structure …
mechanical-pulse treatment (MPT) with different deformation modes. The structure …
Effect of a Long-Range Dislocation Pileup on the Atomic-Scale Hydrogen Diffusion near a Grain Boundary in Plastically Deformed bcc Iron
In this paper, we present concurrent atomistic-continuum (CAC) simulations of the hydrogen
(H) diffusion along a grain boundary (GB), nearby which a large population of dislocations …
(H) diffusion along a grain boundary (GB), nearby which a large population of dislocations …
Multiscale computational analysis of crack initiation at the grain boundaries in hydrogen-charged bi-crystalline alpha-iron
This paper presents a mesoscale concurrent atomistic–continuum (CAC) simulation of crack
initiation at the atomically structured grain boundaries (GBs) in bi-crystalline BCC iron (α-Fe) …
initiation at the atomically structured grain boundaries (GBs) in bi-crystalline BCC iron (α-Fe) …
The asymmetric evolution of grain-scale stresses in notched specimens under cyclic loads
Engineering components are often exposed to various cyclic loading conditions. The
development of microscale stresses under such conditions depends on the material texture …
development of microscale stresses under such conditions depends on the material texture …
[PDF][PDF] The interactions of deformation twins, zirconium hydrides, and microcracks
S Marashi, H Abdolvand - International Journal of Plasticity, 2024 - researchgate.net
One of the main degradation mechanisms of the zirconium alloys used in nuclear reactors is
hydrogen embrittlement and the formation of zirconium hydrides. This study focuses on …
hydrogen embrittlement and the formation of zirconium hydrides. This study focuses on …
[HTML][HTML] Coupled chemical–mechanical damage modeling of hydrogen-induced material degradation
The automotive industry faces significant challenges in achieving climate targets and
becoming CO 2 neutral. To reduce the weight of body in white specially in electrical …
becoming CO 2 neutral. To reduce the weight of body in white specially in electrical …