Effect of Chloride Ions on Electrochemical Behavior of Canister Materials

IF 1 4区工程技术 Q3 NUCLEAR SCIENCE & TECHNOLOGY

Science and Technology of Nuclear Installations Pub Date : 2022-08-03 DOI:10.1155/2022/8577144

Gha-Young Kim, Junhyuk Jang, Minsoo Lee, Jin-Seop Kim

引用次数: 3

Abstract

Various canister candidate materials (SS316L, Ti-Gr.2, Alloy 22, and Cu) were studied using groundwater at the Korea Atomic Energy Research Institute (KAERI) underground research tunnel (KURT), with the addition of chloride ions using different electrochemical techniques. The corrosion potential and corrosion current of test materials were obtained by the polarization measurement. The polarization measurements revealed that the addition of chloride ions was detrimental to the SS316L and Cu materials by increasing corrosion current, which is an indicator of corrosion rate. Impedance measurements and fitting analysis showed that the corrosion resistance of Cu was more than 10 times lower than that of other materials in the KURT groundwater solution containing 0.1 M of chloride ions.

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氯离子对罐状材料电化学行为的影响

各种罐候选材料(SS316L, Ti-Gr。在韩国原子能研究院(KAERI)地下研究隧道(KURT)，利用地下水，通过不同的电化学技术添加氯离子，研究了2、Alloy 22和Cu)。通过极化测量得到了测试材料的腐蚀电位和腐蚀电流。极化测量结果表明，氯离子的加入通过增加腐蚀电流对SS316L和Cu材料产生不利影响，这是腐蚀速率的一个指标。阻抗测量和拟合分析表明，在含0.1 M氯离子的KURT地下水溶液中，Cu的耐蚀性比其他材料低10倍以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science and Technology of Nuclear Installations NUCLEAR SCIENCE & TECHNOLOGY-

CiteScore

2.30

自引率

9.10%

发文量

审稿时长

4-8 weeks

期刊介绍： Science and Technology of Nuclear Installations is an international scientific journal that aims to make available knowledge on issues related to the nuclear industry and to promote development in the area of nuclear sciences and technologies. The endeavor associated with the establishment and the growth of the journal is expected to lend support to the renaissance of nuclear technology in the world and especially in those countries where nuclear programs have not yet been developed.