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题名: Effects of exposing duration on corrosion performance in weld joint of Ni-Mo-Cr alloy in FLiNaK molten salt
作者: Hou, J; Yu, GJ; Zeng, CL; Ai, H; Xie, RB; Chen, YJ; Zhou, XT; Xie, LD; Wang, JQ
刊名: JOURNAL OF FLUORINE CHEMISTRY
出版日期: 2016
卷号: 191, 页码:110-119
关键词: Ni-base alloy ; Molten salt ; EPMA ; De-alloying ; Weld joint ; High temperature corrosion
DOI: 10.1016/j.jfluchem.2016.07.007
通讯作者: Yu, GJ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China.
文章类型: 期刊论文
英文摘要: Effects of exposure duration on corrosion performance of Ni-Mo-Cr weld joint was investigated in present work. Two batches of FLiNaK molten salt was used for the corrosion test. The corrosion process was mainly controlled by selective dissolution of Cr. The corrosion rate was increased rapidly at short-term duration up to 400 h and then slowed down to a plateau for long-term duration up to 3000 h. The corrosion performance was exactly the same between the base zone and weld zone of the weld joint after long-term exposure. The corrosion rate was mostly promoted by impurities at early stage and essentially controlled by Cr diffusion from matrix to surface. Impurities of metal ions in salt substituted Cr and deposited on surface of weld joints. The corrosion was significantly mitigated in well purified FLiNaK salt. (C) 2016 Published by Elsevier B.V.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000388058300015
ISSN号: 0022-1139
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26491
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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