[1L01-05] Refractory Structural Materials

[1L04] Recrystallization Behavior, Mechanical Properties, and Irradiation Tolerance of Tungsten-Tantalum Alloys for Fusion Reactor

*Itsuki Ozawa¹, Shuhei Nogami¹, Takeshi Miyazawa¹, Daisuke Asami¹, Misako Miwa¹, Kiyohiro Yabuuchi², Akira Hasegawa¹ (1. Tohoku.University, 2. Kyoto.University)

Keywords:Fusion reactor, Tungsten alloy, Recrystallization behavior, Mechanical properties, Irradiation tolerance

Low temperature brittleness, recrystallization embrittlement, and neutron irradiation embrittlement are issues of tungsten (W), which is expected for fusion reactor applications. In this presentation, recrystallization behavior, mechanical properties, and irradiation tolerance of tungsten-tantalum (W-Ta) alloys will be reported, which have been developed to overcome those issues.