Study on core disruptive accidents of metal-fueled sodium-cooled fast reactors, 3; Measurement for eutectic reaction rate between U-Zr alloys and Fe/stainless steel

Yamazaki, Saishun*; Ouchi, Atsushi*; Sakamoto, Kan*; Sato, Takumi ; Ogata, Takanari*; Yamano, Hidemasa

The thickness reduction rate of Fe/stainless steel by eutectic reaction with U/U-Zr alloys was estimated in order to provide the basis for developing between the fuel and cladding eutectic reaction phenomenon during core disruptive accidents (CDA) in metal-fueled sodium-cooled fast reactors. In the case of the intervention of eutectic melt expected during CDA, the thickness reduction rate of Fe/stainless steel for fuel-cladding material has slowed.

Language	:	Japanese
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Meeting title	:	日本原子力学会2025年秋の大会
Held date	:	2025/09
Location (city)	:	北九州
Location (country)	:	日本
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Keywords	:	ナトリウム冷却炉; 炉心損傷事故; 金属燃料; 共晶反応; 減耗速度
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Cooperating Institute	:	経済産業省

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Registration No. : BB20250608
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