[2C16-20] Accident Tolerant Fuel

[2C19] Material property evaluation of FeCrAl-ODS steel: Fatigue property

*Chisato Sakaguchi¹, Kan Sakamoto¹, Yusuke Miura¹, Hideyuki Kasahara², Hajime Miyata², Junji Matsunaga³ (1. NFD, 2. HGNE, 3. GNF-J)

Keywords:Accident-tolerant fuel, ATF, FeCrAl-ODS, Mechanical property, Fatigue property

We have researched and developed oxide-dispersion-strengthened FeCrAl steel (FeCrAl-ODS steel) as an accident-tolerant fuel cladding material for BWRs. In this presentation, we report the results of fatigue tests performed on FeCrAl-ODS steel cladding specimens processed into C-shaped rings.