Effect of a pre-oxide on the high temperature steam oxidation of Zircaloy-4 and M5Framatome alloys

JOURNAL OF NUCLEAR MATERIALS

卷:518

Article

Le Saux, M.^1,2  Brachet, J. C.¹  Vandenberghe, V.^1,3  Rouesne, E.¹  Urvoy, S.¹  Ambard, A.⁴  Chosson, R.⁵ 

[1] Univ Paris Saclay, DEN Serv Rech Metallurg Appl SRMA, CEA, F-91191 Gif Sur Yvette, France

[2] ENSTA Bretagne, IRDL, UMR CNRS 6027, F-29200 Brest, France

[3] Univ Paris Saclay, DEN Serv Etud Mecan & Therm SEMT, CEA, F-91191 Gif Sur Yvette, France

[4] EDF R&D, MMC Dept, Ave Renardieres, F-77818 Moret Sur Loing, France

[5] Framatome France, 10 Rue Juliette Recamier, F-69456 Lyon 06, France

关键词: Zircaloy-4;    M5(Framatome );    Oxidation in steam at high temperature;    Pre-oxide;    LOCA;   

DOI  :  10.1016/j.jnucmat.2019.03.023

来源: Elsevier

【 摘 要 】

The effect of a pre-existing oxide layer formed at low temperature on the subsequent oxidation in steam at high temperature was studied for Zircaloy-4 and MSFramatome alloys. Various pre-oxidation conditions (air at 550 degrees C, steam at 415 degrees C, static and flowing water at similar to 350 degrees C), pre-oxide thicknesses (3-60 mu m) and high temperature oxidation conditions (850-1200 degrees C, 55-9500s) were investigated. Pre-oxide has an effect on the oxidation kinetics and the hydrogen uptake at high temperature, depending on the preoxide thickness, the pre-oxidation conditions, the alloy and the high temperature oxidation conditions. (C) 2019 Elsevier B.V. All rights reserved.

【 授权许可】

Free