期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 452, 期 1, 页码 11-15出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2007.01.169
关键词
corrosion behavior; hot corrosion; lithium molten salt
资金
- National Research Foundation of Korea [2007-00148] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The electrolytic reduction of spent oxide fuel involves the liberation of oxygen in a molten LiCl electrolyte, which results in a chemically aggressive environment that is too corrosive for typical structural materials. So, it is essential to choose the optimum material for the process equipment for handling a molten salt. In this study, corrosion behavior of lnconel 713LC, Nimonic 80A and Nimonic 90 in a molten LiCl-Li2O salt under an oxidizing atmosphere was investigated at 675 degrees C for 72-216 h. Inconel 713LC alloy showed the highest corrosion resistance among the examined alloys. Corrosion products of Inconel 713LC were Cr2O3, NiCr2O4, Ni and NiO, and those of Nimonic 80A were Cr2O3, LiFeO2, (Cr, Ti)(2)O-3 and Li2Ni8O10 while Cr2O3, (Cr, Ti)(2)O-3, LiAlO2 and CoCr2O4 were produced from Nimonic 90. Inconel 713LC showed a local corrosion behavior and Nimonic 80A, Nimonic 90 showed a uniform corrosion behavior. (C) 2007 Elsevier B.V. All rights reserved.
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