Radiation-induced helium bubbles in metals

SH Li, JT Li, WZ Han - Materials, 2019 - mdpi.com
Helium (He) bubbles are typical radiation defects in structural materials in nuclear reactors
after high dose energetic particle irradiation. In the past decades, extensive studies have …

Atomic irradiation defects induced hardening model in irradiated tungsten based on molecular dynamics and CPFEM

P Lin, J Nie, Y Lu, C Shi, S Cui, W Cui, L He - International Journal of …, 2024 - Elsevier
Tungsten plays a significant role in the nuclear industry, in which defects are generated
upon exposure to irradiation. Irradiation-induced defects, such as dislocation loops and …

Effect of Electron Beam Remelting Treatments on the Microstructure and Properties of Atmospheric Plasma Sprayed Tungsten Coatings

WB Liao, ZY Liu, MJ He, C Feng, F Wang… - Journal of Thermal Spray …, 2021 - Springer
Atmospheric plasma-sprayed tungsten coating is one of the most prospective plasma-facing
materials used in the first wall of nuclear fusion devices since its low tritium inventory, good …

The dynamic response of He bubble in bicrystal copper under uniaxial compression and tension

Q Zhu, JL Shao, P Wang - Journal of Nuclear Materials, 2023 - Elsevier
He bubbles can exhibit different behaviors due to their different positions in the
nanocrystalline materials. Using molecular dynamics simulations, we study the dynamic …

Helium bubbles diffusion in aluminum: Influence of gas pressure

A Antropov, V Stegailov - Journal of Nuclear Materials, 2023 - Elsevier
The influence of helium pressure on the mechanisms of diffusion of the He-filled
nanobubbles in fcc Al is investigated by the classical molecular dynamics. It is shown that at …

On the interactions of interstitial helium atom with helium bubble in tungsten: A molecular dynamics study

M Qiu, Q Hou, B Fu, J Cui - Journal of Nuclear Materials, 2022 - Elsevier
Tungsten (W) has been chosen as the primary plasma-facing material in nuclear fusion
reactors. However, when helium (He) ions are continuously irradiated, enormous amounts of …

Macroscopic elastic stress and strain produced by irradiation

L Reali, M Boleininger, MR Gilbert, SL Dudarev - Nuclear Fusion, 2021 - iopscience.iop.org
Using the notion of eigenstrain produced by the defects formed in a material exposed to high
energy neutron irradiation, we develop a method for computing macroscopic elastic stress …

Elastic properties of plasma-exposed tungsten predicted by molecular-dynamics simulations

A Weerasinghe, BD Wirth… - ACS applied materials & …, 2020 - ACS Publications
We report results of systematic molecular-dynamics computations of the elastic properties of
single-crystalline tungsten containing structural defects, voids and overpressurized He …

[HTML][HTML] Quantitative method to predict the energetics of helium-nanocavities interactions in metal systems based on electrophobic interaction

F Luo, B Zhang, Z Gao, J Huang, HB Zhou, GH Lu… - Journal of …, 2024 - Elsevier
Energetics of helium-nanocavities interactions are crucial for unveiling underlying
mechanisms of nanocavity evolution in nuclear materials. Nevertheless, it becomes …

Atomic-scale study of He ion irradiation-induced clustering in α-Zirconium

H Zhu, M Qin, T Wei, J Davis, M Ionescu - Acta Materialia, 2023 - Elsevier
Zircaloy-4 alloy specimens consisting of α-Zr grains were irradiated on a tandem accelerator
with 5 MeV He ions to a fluence of 5× 10 21 ions m− 2 at different temperatures. Defect …