A review of surface damage/microstructures and their effects on hydrogen/helium retention in tungsten

YG Li, QR Zheng, LM Wei, CG Zhang, Z Zeng - Tungsten, 2020 - Springer
The change in surface damage/microstructures and its effects on the hydrogen (H)
isotope/helium (He) dynamic behavior are the key factors for investigating issues of tungsten …

Atomistically-informed hardening and kinetics models of helium bubble in irradiated tungsten

C Ji, J Hu, Z Zhuang, Y Cui - International Journal of Plasticity, 2023 - Elsevier
In fusion reactor environment, helium bubble acts as a crucial inducement to the
performance degradation of plasma facing tungsten, leading to irradiation hardening and …

Growth of fiberform nanostructures on metal surfaces by helium plasma irradiation

S Kajita, AM Ito, K Ibano - Journal of Applied Physics, 2022 - pubs.aip.org
Helium plasma irradiation to various metals leads to peculiar morphology changes as
forming fiberform nanostructures called fuzz when a certain set of conditions is satisfied. In …

On the origin of 'fuzz'formation in plasma-facing materials

D Dasgupta, RD Kolasinski, RW Friddle, L Du… - Nuclear …, 2019 - iopscience.iop.org
Tungsten, the material used in the plasma-facing components (PFCs) of nuclear fusion
reactors, develops a fuzz-like surface morphology under typical reactor operating conditions …

Helium-induced morphology evolution in tungsten under thermal treatment

M Ialovega, E Bernard, MF Barthe, R Bisson… - Nuclear …, 2022 - iopscience.iop.org
Surface and near-surface morphology evolution of helium-irradiated tungsten due to thermal
cycling up to the ITER-relevant temperature of 1350 K was studied using electron …

Mechanisms of helium irradiation blistering and surface deformation in tungsten

C Fan, S Pan, X Hu, B He, M Huang - Acta Materialia, 2023 - Elsevier
Helium irradiation blistering in tungsten is of intense interest for plasma-facing materials
under fusion-relevant conditions. Previous studies have revealed that the surface blistering …

Equation of state for He bubbles in W and model of He bubble growth and bursting near W {100} surfaces derived from molecular dynamics simulations

W Setyawan, D Dasgupta, S Blondel, G Nandipati… - Scientific Reports, 2023 - nature.com
Molecular dynamics (MD) simulations are performed to derive an equation of state (EOS) for
helium (He) bubbles in tungsten (W) and to study the growth of He bubbles under a W (100) …

Theoretical model of helium bubble growth and density in plasma-facing metals

KD Hammond, D Maroudas, BD Wirth - Scientific Reports, 2020 - nature.com
We present a theoretically-motivated model of helium bubble density as a function of volume
for high-pressure helium bubbles in plasma-facing tungsten. The model is a good match to …

Continuum-scale modeling of helium bubble bursting under plasma-exposed tungsten surfaces

S Blondel, DE Bernholdt, KD Hammond… - Nuclear Fusion, 2018 - iopscience.iop.org
We present a comparison between a continuum-scale drift-diffusion-reaction cluster
dynamics prediction of helium retention in low-energy helium plasma exposed tungsten and …

Helium flux effects on bubble growth and surface morphology in plasma-facing tungsten from large-scale molecular dynamics simulations

KD Hammond, IV Naeger, W Widanagamaachchi… - Nuclear …, 2019 - iopscience.iop.org
We investigate helium flux effects on helium transport and surface evolution in plasma-
facing tungsten using molecular dynamics. The simulations span two orders of magnitude …