[3C10-13] Microstructures of Fusion Materials

[3C13] Development of low-activation vanadium alloy for recycling within 10 years after use in fusion reactors

(2)Evaluation of impurity levels and mechanical properties of candidate alloys

*Takuya Nagasaka^2,1, Teruya Tanaka^2,1, Takuya Goto^2,1, Takeo Muroga^2,1, Akio Sagara^2,1, Kazuhiro Nomura³, Seiji Sakurai³, Hideo Yoshinaga³, Takamasa Sugawara⁴, Kunio Yubuta⁴ (1. NIFS, 2. SOKENDAI, 3. Taiyo Koko Co., LTD., 4. IMR, Tohoku Univ.)

Keywords:Fusion reactor blanket, Purification, Tensile strength and ductility

Recycling after about 100 y cooling has been considered for low-activation materials for fusion reactors. The final goal of the present study is to reduce the cooling time to less than 10 y by using vanadium alloys. As the second report, radioactive impurity levels of candidate alloys, and their mechanical properties will be discussed.