Effect of Metallic Li on the Corrosion Behavior of Inconel 625 in Molten LiCl-Li2O-Li
Effect of Metallic Li on the Corrosion Behavior of Inconel 625 in Molten LiCl-Li2O-Li
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DOI：
10.1149/2.0201906jes
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发表时间：
2019-04-03
影响因子：
3.9
通讯作者：
Chidambaram, Dev
中科院分区：
文献类型：
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作者：
Phillips, William;Karmiol, Zachary;Chidambaram, Dev
研究了Inconel 625合金在650 ℃熔融LiCl溶液中的腐蚀行为，并研究了其在氧化物基核燃料电还原中的应用。这项研究的重点是在样品的表面上的形态和元素的变化，强调使用聚焦离子束显微镜进行横截面分析。在没有金属Li的情况下，形成稳定的氧化膜，将基材的腐蚀限制在0.07mm/年。然而，在金属Li的存在下，该膜的形成受到阻碍，导致基材的脱合金化和主要由Ni组成的高度多孔的微观结构的形成。(C)作者（S）2019由ECS发布。
The corrosion behavior of Inconel 625 in molten LiCl solutions maintained at 650 degrees C and containing various quantities of Li2O and metallic Li was studied for possible application in the electroreduction of used oxide-based nuclear fuel. This study focusses on the morphological and elemental changes on the surface of the samples with an emphasis on cross-sectional analyses conducted using focused ion beam microscopy. In the absence of metallic Li, a stable oxide film is formed that limits the corrosion of the base material to 0.07mm/year. However, in the presence of metallic Li, the formation of this film is impeded, resulting in dealloying of the base material and the formation of a highly porous microstructure composed primarily of Ni. (C) The Author(s) 2019. Published by ECS.