[1N01-07] Engineering and Design for Nuclear Fusion (Heat and Mass-transfer Characteristic, Engineering Design)

[1N05] Development of tungsten laminated composite for suppresion of low-temperature brittleness

*Takefumi Hazama¹, Shuhei Nogami¹, Hiroyuki Noto², Takuya Nagasaka², Takeshi Miyazawa¹, Akira Hasegawa¹ (1. Tohoku University, 2. National Institute for Fusion Science)

Keywords:Divertor, Tungsten, Ductile-to-brittle transition, Ductility, Laminated composite

Tungsten (W) plate is candidate material for divertor. However, its low temperature brittleness can promote damage formation. W laminate, which is fabricated by joining of stacked pure W foils with low temperature ductility, has been developed. In this presentation, development of W laminate using potassium doped W with high recrystallization temperature will be reported.