Transmission electron electron microscopy study of complex oxide scales on DIN 1.4970 steel exposed to liquid Pb-Bi eutectic

被引:54
作者
Charalampopoulou, E. [1 ,2 ]
Delville, R. [1 ]
Verwerft, M. [1 ]
Lambrinou, K. [1 ]
Schryvers, D. [2 ]
机构
[1] SCK CEN, Boeretang 200, B-2400 Mol, Belgium
[2] Univ Antwerp, EMAT Res Grp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
关键词
Stainless steel; STEM; TEM; Liquid metal corrosion; Oxidation; Internal oxidation; AUSTENITIC STAINLESS-STEEL; FLOWING LEAD; OXIDATION RESISTANCE; CORROSION; OXYGEN; 316L; LBE; MECHANISM; ALLOY; T91;
D O I
10.1016/j.corsci.2018.10.018
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The deployment of Gen-IV lead-cooled fast reactors requires a good compatibility between the selected structural/cladding steels and the inherently corrosive heavy liquid metal coolant. An effective liquid metal corrosion mitigation strategy involves the in-situ steel passivation in contact with the oxygen-containing Pb-alloy coolant. Transmission electron microscopy was used in this work to study the multi-layered oxide scales forming on an austenitic stainless steel fuel cladding exposed to oxygen-containing (C-O approximate to 10(-6) mass%) static liquid lead bismuth eutectic (LBE) for 1000 h between 400 and 500 degrees C. The oxide scale constituents were analyzed, including the intertwined phases comprising the innermost biphasic layer.
引用
收藏
页码:22 / 31
页数:10
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