Effect of exposing duration on the interaction between nickel-based alloy and SiC in molten LiF-NaF-KF salt

被引：7
|
作者：
Xue, Wandong [1 ,2 ]
Yang, Xinmei [1 ]
Li, Zhijun [1 ]
Li, Xiaoke [1 ]
Wang, Jianqiang [1 ]
Ignatiev, Victor [3 ]
Zhou, Xingtai [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Kurchatov Inst, Natl Res Ctr, Moscow 123182, Russia
来源：
JOURNAL OF NUCLEAR MATERIALS | 2019年 / 515卷
基金：
中国国家自然科学基金; 上海市自然科学基金;
关键词：
Nickel; Molten salts; Ceramic; High temperature corrosion; HEAT-TRANSFER FLUIDS; MO-CR ALLOY; HASTELLOY-N; CORROSION-RESISTANCE; SILICON-CARBIDE; FLUORIDE; COMPOSITES; REACTOR; PERFORMANCE; BEHAVIOR;
D O I：
10.1016/j.jnucmat.2018.12.035
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effect of exposing duration on the interaction between nickel-based alloy (GH3535) and SiC in molten LiF-NaF-KF (FLiNaK) salt was investigated. The coexistence of GH3535 alloy and SiC deteriorates their corrosion in molten FLiNaK salt. Ni in alloy continuously diffuses outward and reacts with corrosion products of SiC to form nickel silicides on the surface of alloy. Meanwhile, Cr in alloy continuously diffuses into salt and reacts with SiC to form chromium carbides on the surface of SiC. The thickness of the deposition layer and the corrosion region in alloy are almost linearly increasing with the increase of exposing duration. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：276 / 283
页数：8
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