Corrosion of irradiated NbMoVCr coatings in lead-bismuth eutectic

被引：1
|
作者：
Yang, Jian [1 ]
Zhong, Yilong [1 ]
Long, Bin [2 ]
Li, Lu [2 ]
Qu, Guofeng [1 ]
Lu, Shenghui [1 ,2 ]
Yang, Jijun [1 ]
机构：
[1] Sichuan Univ, Inst Nucl Sci & Technol, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Peoples R China
[2] China Inst Atom Energy, Beijing 102413, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 237卷
基金：
中国国家自然科学基金;
关键词：
Irradiation accelerated corrosion; Lead-bismuth eutectic; NbMoVCr coatings; RADIATION-INDUCED SEGREGATION; STAINLESS-STEEL; MICROSTRUCTURE; TEMPERATURE; BEHAVIOR; ALLOYS; ION; EVOLUTION; OXIDATION; OXIDE;
D O I：
10.1016/j.corsci.2024.112331
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
NbMoVCr multi-principal element alloy (MPEA) coatings were irradiated by 6 MeV Au-ions at room-temperature and 550 degrees C to the peak irradiation doses of 20 dpa and 80 dpa. Then the effect of irradiation on corrosion of coatings in liquid lead-bismuth eutectic (LBE) was investigated. By comparing the microstructure of the surface oxide film and grain boundary corrosion region in the irradiated and unirradiated coatings, it is revealed that Auions irradiation promotes both the overall corrosion and intergranular corrosion of NbMoVCr coatings, which is attributed to the irradiation-induced defects as well as the desegregation of V elements at grain boundaries.
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页数：16
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