2018 Fall Meeting

Presentation information

Print

Oral presentation

VI. Fusion Energy Engineering » 601-2 Fusion Reactor Material Science (Reactor and Blanket Materials, Irradiation Behavior)

[2N16-21] Fusion Materials, Radiation Effects and Methods for Mechanical Testing

Thu. Sep 6, 2018 4:40 PM - 6:15 PM Room N (D23 -D Building)

Chair:Yoshitaka Matsukawa(Tohoku Univ.)

4:55 PM - 5:10 PM

[2N17] Effect of rhenium addition on recrystallization behavior of tungsten materials

*Itsuki Terada1, Takeshi Miyazawa1, Shuhei Nogami1, Akira Hasegawa1 (1. Tohoku University)

Keywords:Fusion reactor, Divertor, Recrystallization, Tungsten-rhenium alloy, Substitutional solid solution

It is well-known that grain coarsening of tungsten (W) materials for divertor component of fusion reactors due to recrystallization causes the decrease in strength and toughness in low-temperature range. Rhenium (Re) addition is considered to increase the recrystallization temperature by inhibiting self-diffusion of W. Recrystallization behavior of W-Re alloys by thermal history will be presented.