Corrosion behavior of ion-irradiated 12Cr2W2Mn F/M steel in liquid LBE

Authors :: Ke Shi
Jian Yang
Qingsong Chen
Yongduo Sun
Wei Zhang
Kun He
Rui Tang
Zhien Ning
Jiali Liao
Yuanyou Yang
Ning Liu
Jijun Yang
Source :: Nuclear Materials and Energy, Vol 28, Iss , Pp 101033- (2021)
Publication Year :: 2021
Publisher :: Elsevier, 2021.
Abstract: The corrosion characteristics of 12Cr2W2Mn Ferritic/martensitic (F/M) steel before and after Au-ions irradiation in static lead–bismuth eutectic (LBE) have been investigated at 400 °C for 100 h. The results show that the samples without irradiation have many unequal size Fe3O4 particles and little Cr-rich oxide after LBE corrosion test, and the thickness of corrosion layer is 4.4 μm. The irradiation samples display plenty compact triangular (Fe,Cr)3O4 and some Cr-rich oxide, and the thickness of corrosion layer is 4.4 μm with some cracks. Au-ions irradiation enahnced the LBE corrosion of F/M steel, which could be attributed to the irradiation defects provide diffusion path of O atoms in liquid LBE. A schematic model was presented to understand the effect of irradiation damage on LBE corrosion behavior of F/M steel.