2020 Annual Meeting

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Oral presentation

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

[1L01-05] Refractory Structural Materials

Mon. Mar 16, 2020 10:30 AM - 11:55 AM Room L (Lecture Bildg. S 2F S-22)

Chair:Ryuta Kasada(Tohoku Univ.)

11:00 AM - 11:15 AM

[1L03] Oxidation behavior of Tungsten-Chromium Alloys for Fusion Reactor

*Koki Otsuka1, Shuhei Nogami1, Yuta Kikuchi1, Akira Hasegawa1 (1. Tohoku.University)

Keywords:Fusion reactor, Tungsten alloy, Oxidation, Chromium addition, Potassium doping

It is concerned that the tungsten materials used for the plasma facing components of fusion reactors may produce radioactive tungsten oxides in the reactor accidents, which may result in the contamination of in-core components by their radioactive materials. In this presentation, oxidation behavior of tungsten alloys will be reported, which are applied potassium doping to improve mechanical properties and alloyed by chromium to improve the resistance to oxidation.