Observation of hydrogen trapping at dislocations, grain boundaries, and precipitates

YS Chen, H Lu, J Liang, A Rosenthal, H Liu… - Science, 2020 - science.org
Hydrogen embrittlement of high-strength steel is an obstacle for using these steels in
sustainable energy production. Hydrogen embrittlement involves hydrogen-defect …

Parameter-free quantitative simulation of high-dose microstructure and hydrogen retention in ion-irradiated tungsten

DR Mason, F Granberg, M Boleininger… - Physical Review …, 2021 - APS
Hydrogen isotopes are retained in plasma-facing fusion materials, triggering hydrogen
embrittlement and changing tritium inventory as a function of exposure to neutron irradiation …

Predictive model of hydrogen trapping and bubbling in nanovoids in bcc metals

J Hou, XS Kong, X Wu, J Song, CS Liu - Nature materials, 2019 - nature.com
The interplay between hydrogen and nanovoids, despite long being recognized as a central
factor in hydrogen-induced damage in structural materials, remains poorly understood …

Investigating the formation mechanism of void lattice in tungsten under neutron irradiation: from collision cascades to ordered nanovoids

ZZ Li, YH Li, D Terentyev, N Castin, A Bakaev, G Bonny… - Acta Materialia, 2021 - Elsevier
The “void lattice” formed by periodic arrangements of voids, usually replicating the symmetry
and crystallographic orientation of the host matrix, is an interesting phenomenon in materials …

Nanoindentation of tungsten: From interatomic potentials to dislocation plasticity mechanisms

FJ Domínguez-Gutiérrez, P Grigorev, A Naghdi… - Physical Review …, 2023 - APS
In this study, we employed molecular dynamics simulations, both traditional and machine
learned, to emulate spherical nanoindentation experiments of crystalline W matrices at …

Hydrogen trapping, desorption and clustering in heterophase interfaces of W-ZrC alloy

Y Zhang, X Li, Y Xu, Y Lei, Z Xie, X Wang, Q Fang… - Acta Materialia, 2023 - Elsevier
Understanding the interaction of hydrogen (H) with defects has been recognized as a central
aspect in hydrogen-induced damages in metals. In this work, the role of coherent and semi …

Edge dislocation nucleation mechanism of surface blistering in tungsten exposed to deuterium plasma

W Guo, L Ge, Y Yuan, L Cheng, S Wang… - Nuclear …, 2018 - iopscience.iop.org
The mechanism of tungsten (W) blistering under deuterium (D) plasma exposure is still
under investigation. To clearly demonstrate the microstructure and nucleation mechanism of …

Deuterium trapping by deformation-induced defects in tungsten

M Zibrov, M Balden, M Dickmann, A Dubinko… - Nuclear …, 2019 - iopscience.iop.org
The influence of defects induced by plastic deformation of tungsten (W) on deuterium (D)
retention has been studied. Recrystallized W samples were subjected to tensile …

Retarded recrystallization of helium-exposed tungsten

W Guo, L Cheng, G De Temmerman, Y Yuan… - Nuclear …, 2018 - iopscience.iop.org
In ITER and future tokamaks, recrystallization has been identified as an important issue
which may reduce the strength of tungsten plasma-facing component and deteriorate its …

Blister-dominated retention mechanism in tungsten exposed to high-fluence deuterium plasma

M Liu, W Guo, L Cheng, J Wang, S Wang, H Yin… - Nuclear …, 2020 - iopscience.iop.org
To investigate the effect of blistering on hydrogen isotope (HI) retention, a series of
deuterium plasma exposures were performed using recrystallized tungsten samples at 500 …