Mechanical properties of tungsten: Recent research on modified tungsten materials in Japan

S Nogami, A Hasegawa, M Fukuda, M Rieth… - Journal of Nuclear …, 2021 - Elsevier
There remain some drawbacks of mechanical properties of W materials as a plasma facing
material (PFM) for fusion reactor divertors, which are low temperature brittleness, high …

Research status of tungsten-based plasma-facing materials: A review

C Luo, L Xu, L Zong, H Shen, S Wei - Fusion Engineering and Design, 2023 - Elsevier
Tungsten-based materials are considered to be one of the most promising plasma-facing
materials, but there are still many problems in practical application. Plasma-facing materials …

Tungsten–tantalum alloys for fusion reactor applications

S Nogami, I Ozawa, D Asami, N Matsuta… - Journal of Nuclear …, 2022 - Elsevier
Abstract Tungsten–tantalum (W-Ta) alloys containing 1–5% Ta were developed for fusion
reactor applications. For the mechanical properties and resistance against recrystallization …

Atomic-scale hidden point-defect complexes induce ultrahigh-irradiation hardening in tungsten

RY Zheng, WR Jian, IJ Beyerlein, WZ Han - Nano Letters, 2021 - ACS Publications
Tungsten displays high strength in extreme temperature and radiation environments and is
considered a promising plasma facing material for fusion nuclear reactors. Unlike other …

Neutron irradiation-enhanced grain growth in tungsten and tungsten alloys

H Gietl, T Koyanagi, X Hu, M Fukuda… - Journal of Alloys and …, 2022 - Elsevier
To understand the microstructural stability of candidate plasma-facing materials under fusion-
relevant environments, neutron irradiation of W and W-3% Re alloys with and without K and …

Revealing the role of oxygen on the defect evolution of electron-irradiated tungsten: A combined experimental and simulation study

Z Hu, Q Yang, F Jomard, P Desgardin… - Journal of Nuclear …, 2024 - Elsevier
The evolution of Frenkel pairs has been studied experimentally and theoretically in tungsten,
a Body-Centered Cubic metal. We used positron annihilation spectroscopy to characterize …

Effect of purity on the vacancy defects induced in self–irradiated tungsten: A combination of PAS and TEM

Z Hu, P Desgardin, C Genevois, J Joseph… - Journal of Nuclear …, 2021 - Elsevier
Vacancy defects in tungsten induced by self-ion irradiation were characterized by positron
annihilation spectroscopy (PAS) and transmission electron microscopy (TEM). Taking …

Neutron irradiation tolerance of potassium-doped and rhenium-alloyed tungsten

S Nogami, D Terentyev, A Zinovev, C Yin… - Journal of Nuclear …, 2021 - Elsevier
Tungsten (W) based materials for fusion reactor applications have been developed in Japan
for the last decade to improve thermo-mechanical properties and tolerance with respect to …

Neutron irradiation hardening across ITER diverter tungsten armor

D Terentyev, C Yin, A Dubinko, CC Chang… - International Journal of …, 2021 - Elsevier
In this work, we have performed neutron irradiation and sub-sequent hardness
measurements on a series of tungsten grades to screen the irradiation-induced hardness as …

Evolution of microstructure in neutron irradiated cold rolled tungsten and its correlation with hardness

K Mergia, V Chatzikos, E Manios, S Dellis… - Fusion Engineering and …, 2021 - Elsevier
The understanding of the neutron irradiation effects in tungsten is of significant importance
for its use as a plasma facing material in future fusion devices. In this study, cold rolled …