Ab initio modeling of dislocation core properties in metals and semiconductors
Dislocation cores, the regions in the immediate vicinity of dislocation lines, control a number
of properties such as dislocation mobility, cross-slip and short-range interactions with other …
of properties such as dislocation mobility, cross-slip and short-range interactions with other …
Recent advances in modeling and simulation of the exposure and response of tungsten to fusion energy conditions
Under the anticipated operating conditions for demonstration magnetic fusion reactors
beyond ITER, structural and plasma-facing materials will be exposed to unprecedented …
beyond ITER, structural and plasma-facing materials will be exposed to unprecedented …
Integrated experimental and computational study on the effect of hydrogen in mechanical responses of pure tungsten
Hydrogen irradiation profoundly changes the microstructure and morphological
characteristics of tungsten, ultimately resulting in the modifications to its mechanical …
characteristics of tungsten, ultimately resulting in the modifications to its mechanical …
Hydrogen induced dislocation core reconstruction in bcc tungsten
Dislocation, playing a crucial role in the plastic deformation of metals, can be significantly
affected by introducing solute elements. Hydrogen (H) embrittlement is one such example …
affected by introducing solute elements. Hydrogen (H) embrittlement is one such example …
Influence of grain boundaries on the radiation-induced defects and hydrogen in nanostructured and coarse-grained tungsten
We have studied the influence of grain boundaries (GBs) on the radiation-induced defect
evolution and on H retention at 300 K, both experimentally and by computer simulations. For …
evolution and on H retention at 300 K, both experimentally and by computer simulations. For …
Hydrogen trap**, desorption and clustering in heterophase interfaces of W-ZrC alloy
Y Zhang, X Li, Y Xu, Y Lei, Z **e, 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 …
aspect in hydrogen-induced damages in metals. In this work, the role of coherent and semi …
< le 0 0 1> le< 001> edge dislocation nucleation mechanism of surface blistering in tungsten exposed to deuterium plasma
The mechanism of tungsten (W) blistering under deuterium (D) plasma exposure is still
under investigation. To clearly demonstrate the microstructure and nucleation mechanism of …
under investigation. To clearly demonstrate the microstructure and nucleation mechanism of …
Experimental determination of the deuterium binding energy with vacancies in tungsten
M Zibrov, S Ryabtsev, Y Gasparyan… - Journal of Nuclear …, 2016 - Elsevier
Deuterium (D) interaction with vacancies in tungsten (W) was studied using thermal
desorption spectroscopy (TDS). In order to obtain a TDS spectrum with a prominent peak …
desorption spectroscopy (TDS). In order to obtain a TDS spectrum with a prominent peak …
Multiscale modelling of the interaction of hydrogen with interstitial defects and dislocations in BCC tungsten
In a fusion tokamak, the plasma of hydrogen isotopes is in contact with tungsten at the
surface of a divertor. In the bulk of the material, the hydrogen concentration profile tends …
surface of a divertor. In the bulk of the material, the hydrogen concentration profile tends …
Simulations of atomic deuterium exposure in self-damaged tungsten
Simulations of deuterium (D) atom exposure in self-damaged polycrystalline tungsten at 500
K and 600 K are performed using an evolution of the MHIMS (migration of hydrogen …
K and 600 K are performed using an evolution of the MHIMS (migration of hydrogen …