Electrical properties of thermal oxide scales on pure iron in liquid lead-bismuth eutectic

被引：6
|
作者：
Qiu, Jie [1 ]
Han, Junsoo [3 ]
Schoell, Ryan [4 ]
Popovic, Miroslav [1 ]
Ghanbari, Elmira [1 ]
Kaoumi, Djamel [4 ]
Scully, John R. [3 ]
Macdonald, Digby D. [1 ]
Hosemann, Peter [1 ,2 ]
机构：
[1] Univ Calif Berkeley, Dept Nucl Engn, Etcheverry Hall, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[3] Univ Virginia, Dept Mat Sci & Engn, Ctr Elect Sci & Engn, Charlottesville, VA 22904 USA
[4] North Carolina State Univ, Dept Nucl Engn, Raleigh, NC 27607 USA
来源：
CORROSION SCIENCE | 2020年 / 176卷
基金：
美国国家科学基金会;
关键词：
EIS; Resistance; Corrosion; LBE; Oxide scale; Iron; STAINLESS-STEELS; PB-BI; DISSOLUTION CORROSION; IMPEDANCE; 316L; OXIDATION; BEHAVIOR; LBE; TEMPERATURES; DEFORMATION;
D O I：
10.1016/j.corsci.2020.109052
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The impedance behavior of pre-oxidized iron in liquid lead-bismuth eutectic (LBE) at 200 degrees C is studied using electrochemical impedance spectroscopy. The structures and resistance of oxide grown on iron oxidized in air at different temperatures and durations are compared. The results show that the resistance of the oxide film increases with increasing oxidizing temperature, due to the formation of a thicker scale and fewer defects. At the same temperature (600 degrees C), increasing the oxidation time can also reduce the defect concentration in the oxide film and improve the impedance of the oxide scale in LBE.
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页数：9
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