Performance of tungsten fibers for Wf/W composites under cyclic tensile load

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

“…Future complementary studies may extend the current study to a wider parameter space in a linear plasma generator or a fusion reactor. Laboratory-based mechanical tests to identify aspects such as fracture toughness [71,72] and kinematic hardening behavior [73,74] and to incorporate the effects of plasma species [75,76] will also be very valuable. We also note that the sputtering and re-deposition of tungsten could influence the recrystallization and fracture behavior of the ITER MB.…”

EBSD characterization of pure and K-doped tungsten fibers annealed at different temperatures

“…The main goal of this paper is to assess potential anisotropy in the material and to compare the evolution of both distributions in pure and K-doped W fibers annealed at different temperatures. The findings could help to improve the performance of the fibers under cyclic tensile load [35]. For a better understanding of the link between microstructure and mechanical behavior, the reader is referred to the literature [26][27][28]31].…”

Fabrication of Ultra-Fine-Grained W-TiC Alloys by a Simple Ball-Milling and Hydrogen Reduction Method

“…This is due to the superior properties of tungsten such as high melting point (3420 °C), high thermal conductivity, high tensile strength, and high hardness [ 1 , 2 , 3 , 4 , 5 ]. In addition, due to its excellent radiation shielding properties, tungsten is also considered a promising plasma-facing material for future nuclear fusion reactors [ 5 , 6 , 7 ]. However, as a body-centered cubic (bcc) metal, it is well known that tungsten shows brittle behavior at lower temperatures, especially below the ductile-brittle transition temperature (DBTT) [ 8 , 9 ].…”