[3M05-10] Advanced Material 2

[3M06] R&D of advanced stainless steels for BWR fuel claddings (2)

(2)Material performance during severe accidents

*Tomohiko Ikegawa¹, Ryo Ishibashi¹, Kan Sakamoto², Mutsumi Hirai², Shinichiro Yamashita³ (1. Hitachi-GE, 2. NFD, 3. JAEA)

Keywords:Accident tolerant fuel, Fuel cladding, Severe accident, BWR, Core damage, Hydrogen generation

An accident tolerant fuel cladding made of a FeCrAl-ODS steel for BWR is being developed. As one topic of series of presentations, I will introduce a FeCrAl-ODS steel cladding performance during severe accidents, especially a timing of core damage and an amount of hydrogen generation compared with Zr alloy used for conventional BWRs.