A coupled crystal-plasticity and phase-field model for understanding fracture behaviors of single crystal tungsten

ZJ Li, T Wang, DY Chu, ZL Liu, YN Cui - International Journal of Plasticity, 2022 - Elsevier
The brittle-ductile transition (BDT) of tungsten depends heavily on temperature-dependent
dislocation mobility. To well understand the underlying mechanism of tungsten fracture …

[HTML][HTML] In-situ TEM characterization and atomistic simulation of cavity generation and interaction in tungsten at 800° C under dual W2+/He+ irradiation

E Yildirim, PM Mummery, G Greaves, CP Race… - Nuclear Materials and …, 2024 - Elsevier
In this work, we have investigated the role of pre-existing nano-scale cavities and irradiation
sequence in helium clustering, and in the evolution of the cavity population in tungsten at …

Helium bubble bursting in tungsten

F Sefta, N Juslin, BD Wirth - Journal of Applied Physics, 2013 - pubs.aip.org
Molecular dynamics simulations have been used to systematically study the pressure
evolution and bursting behavior of sub-surface helium bubbles and the resulting tungsten …

Many-body central force potentials for tungsten

G Bonny, D Terentyev, A Bakaev… - … and Simulation in …, 2014 - iopscience.iop.org
Tungsten and tungsten-based alloys are the primary candidate materials for plasma facing
components in fusion reactors. The exposure to high-energy radiation, however, severely …

Ultrafine tungsten as a plasma-facing component in fusion devices: effect of high flux, high fluence low energy helium irradiation

O El-Atwani, S Gonderman, M Efe… - Nuclear …, 2014 - iopscience.iop.org
This work discusses the response of ultrafine-grained tungsten materials to high-flux, high-
fluence, low energy pure He irradiation. Ultrafine-grained tungsten samples were exposed …

[HTML][HTML] Exploring the impact of pre-existing helium bubbles on nanoindentation in tungsten through molecular dynamics simulation

P Lin, J Nie, S Cui, W Cui, L He, G Xiao, Y Lu - Journal of Materials …, 2024 - Elsevier
Gaining insight into the underlying mechanisms driving nanoindentation-induced behavior
in tungsten is essential for comprehending its mechanical properties. Although the plasticity …

[HTML][HTML] Molecular dynamics simulations of high-dose damage production and defect evolution in tungsten

F Granberg, J Byggmästar, K Nordlund - Journal of Nuclear Materials, 2021 - Elsevier
Tungsten has been chosen as the plasma-facing wall material in fusion reactors, due to its
high density and melting point. The wall material will not only be sputtered at the surface, but …

Examining deformation localization of irradiated tungsten under uniaxial compression with crystal plasticity

Y Wang, X Sun, J Zhao - International Journal of Refractory Metals and …, 2021 - Elsevier
In this work, the deformation behavior of irradiated tungsten at elevated service
temperatures is examined using mechanism-based crystal plasticity finite element …

Plastic deformation of tungsten due to deuterium plasma exposure: Insights from micro-compression tests

X Fang, M Rasinski, A Kreter, C Kirchlechner… - Scripta Materialia, 2019 - Elsevier
Nanoindentation tests have shown that exposure to deuterium plasma causes a decrease in
pop-in load and an increase in hardness of tungsten. In this work, we use micro …

Impact of Soret effect on hydrogen and helium retention in PFC tungsten under ELM-like conditions

D Dasgupta, S Blondel, E Martínez, D Maroudas… - Nuclear …, 2023 - iopscience.iop.org
In our previous work, we have demonstrated using nonequilibrium molecular-dynamics
simulations that the fluxes of helium and self-interstitial atoms in the presence of a thermal …