The interaction between nitride uranium and stainless steel

10th International School-Conference on Materials for Extreme Environment: Development, Production and Application

Shornikov, D.P.^1 ; Nikitin, S.N.^1 ; Tarasov, B.A.^1 ; Baranov, V.G.^1 ; Yurlova, M.S.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoye Highway 31, Moscow

115409, Russia^1

关键词: Burn up;    Chrome steels;    Fast breeder reactors;    Minimal interactions;    Nitride fuel;    Ods steels;    Temperature range;    Uranium nitride;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/130/1/012037/pdf
DOI  :  10.1088/1757-899X/130/1/012037

来源: IOP

【 摘 要 】

Uranium nitride is most popular nuclear fuel for Fast Breeder Reactor New Generation. In-pile experiments at reactor BOR-60 was shown an interaction between nitride fuel and stainless steel in the range of 8-11% burn up (HA). In order to investigate this interaction has been done diffusion tests of 200 h and has been shown that the reaction occurs in the temperature range 1000-1100 ° C. UN interacted with steel in case of high pollution oxygen (1000-2000 ppm). Also has been shown to increase interaction UN with EP-823 steel in the presence of cesium. In this case the interaction layer had a thickness about 2-3 μm. Has been shown minimal interaction with new ODS steel EP-450. The interaction layer had a thickness less then 2 μm. Did not reveal the influence of tellurium and iodine increased interaction. It was show compatibility at 1000 °C between UN and EP-450 ODS steel, chrome steel, alloying aluminium and silicium.