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 …

A review of impact properties of tungsten materials

S Nogami, S Watanabe, J Reiser, M Rieth… - Fusion Engineering and …, 2018 - Elsevier
One of the most critical issues affecting tungsten (W) as plasma facing material is ductile-to-
brittle transition behavior. It is well known that the microstructure of W materials is influenced …

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 …

[HTML][HTML] Ductilisation of tungsten (W): Tungsten laminated composites

J Reiser, L Garrison, H Greuner, J Hoffmann… - International Journal of …, 2017 - Elsevier
Here we elucidate the mechanisms of plastic deformation and fracture of tungsten laminated
composites. Our results suggest that the mechanical response of the laminates is governed …

Tungsten modified by potassium doping and rhenium addition for fusion reactor applications

S Nogami, A Hasegawa, M Fukuda, S Watanabe… - Fusion Engineering and …, 2020 - Elsevier
Low temperature brittleness, high ductile-to-brittle transition temperature (DBTT), and
recrystallization-induced embrittlement are potential drawbacks related to the thermo …

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 …

Effect of potassium bubbles on the thermal shock fatigue behavior of large-volume potassium-doped tungsten alloy

X Ma, F Feng, X Zhang, T Wang, X Liu, W Lv… - Nuclear …, 2022 - iopscience.iop.org
A newly developed large-volume potassium-doped tungsten (W–K) plate with a thickness of
15 mm and a weight of 25 kg by powder metallurgy plus hot rolling was prepared to meet the …

Neutron irradiation effects on mechanical properties of ITER specification tungsten

D Terentyev, CC Chang, C Yin, A Zinovev, XF He - Tungsten, 2021 - Springer
In this contribution, we present the results of recent neutron irradiation campaign performed
in the material test reactor BR2 (Belgium) on pure tungsten. We have applied various …

Improvement of impact properties of tungsten by potassium doping

S Nogami, S Watanabe, J Reiser, M Rieth… - Fusion Engineering and …, 2019 - Elsevier
Low temperature brittleness and high ductile-to-brittle transition temperature (DBTT) are
potential drawbacks related to the mechanical properties of tungsten (W) for divertor …

Tungsten–potassium: a promising plasma-facing material

X Yang, W Qiu, L Chen, J Tang - Tungsten, 2019 - Springer
Tungsten–potassium (potassium-doped tungsten or WK), initially known from the electric
filament industry, is a promising plasma-facing material (PFM) in future fusion facilities like …