Electronically Temperature-Dependent Interplay between He and Trivacancy in Tungsten Plasma-Facing Materials

ZZ Fu, BC Pan - Materials, 2024 - mdpi.com
Both microvoids and helium (He) impurities are widely present in tungsten (W) plasma-
facing materials (PFMs), where the interaction between microvoids and He atoms has led to …

[HTML][HTML] Effect of temperature, pressure, crystal defect types, and densities on the mechanical behavior of tungsten under tensile deformation: A molecular dynamics …

A Alivaliollahi, G Alahyarizadeh, A Minuchehr - Nuclear Materials and …, 2023 - Elsevier
The mechanical behavior of tungsten under tensile deformation was investigated using
molecular dynamics simulations, with a focus on the effects of temperature, pressure, crystal …

Onset of fuzz formation in plasma-facing tungsten as a surface morphological instability

CS Chen, D Dasgupta, RD Kolasinski, BD Wirth… - Physical Review …, 2021 - APS
Based on simulation results and theoretical analysis according to an atomistically informed
continuum-scale model for the surface morphological response of tungsten plasma-facing …

Effects of elastic softening and helium accumulation kinetics on surface morphological evolution of plasma-facing tungsten

CS Chen, D Dasgupta, A Weerasinghe, BD Wirth… - Nuclear …, 2020 - iopscience.iop.org
Based on a continuous-domain model, capable of accessing the spatiotemporal scales
relevant to fuzz formation on the surface of plasma-facing component (PFC) tungsten, we …

[HTML][HTML] The effect of atomic hydrogen on the behavior of a single dislocation of< 111>{112} in bcc tungsten: Atomistic study

H Park, S Moon, K Kang - Journal of Nuclear Materials, 2024 - Elsevier
Tungsten (W) has been widely studied and spotlighted as a plasma-facing material (PFM) in
the extreme environment of nuclear fusion due to its excellent physical properties. It is …

High-velocity dust impacts in plasma facing materials: Insights from molecular dynamics simulations

P Dwivedi, A Fraile, T Polcar - Journal of Nuclear Materials, 2024 - Elsevier
This research investigates the interaction between high-speed tungsten (W) dust and
plasma-facing components (PFCs) in fusion reactors, particularly focusing on W walls …

Molecular dynamics simulation analysis of the stress around an up-migrating helium bubble under tungsten surface and its bursting

H Zhang, J Sun, Y Wang, M Qin, T Stirner - Materials Today …, 2022 - Elsevier
Tungsten has been considered as the most qualified candidate for the plasma-facing
material of modern fusion devices up to date. However, in the future tokamaks such as ITER …

Modeling and simulation of helium behavior in tungsten: A first-principles investigation

HB Zhou, YH Li, GH Lu - Computational Materials Science, 2016 - Elsevier
Tungsten (W) is regarded as the most promising candidates for plasma-facing materials
(PFMs) in future fusion reactors. However, W will be exposed to high fluxes of helium (He) …

Recrystallization-mediated crack initiation in tungsten under simultaneous high-flux hydrogen plasma loads and high-cycle transient heating

Y Li, TW Morgan, T Vermeij, JWM Vernimmen… - Nuclear …, 2021 - iopscience.iop.org
Tungsten and tungsten-based alloys are the leading material choices for the divertor plasma
facing components (PFCs) in future fusion reactors. Recrystallization may occur when they …

Nanochannel structures in W enhance radiation tolerance

W Qin, F Ren, RP Doerner, G Wei, Y Lv, S Chang… - Acta Materialia, 2018 - Elsevier
Developing high performance plasma facing materials (PFMs) is one of the greatest
challenges for fusion reactors, because PFMs face unprecedented harsh environments …