| Corrosion Behavior of High-Chromium Alloys in Molten LiCl-KCl Eutectic | |
| Ji, Mengmeng1,2; Li, Xin1,2; Liu, Zihe1,2; Yang, Xiaoguang1; Zhang, Xue1; Li, Ying1 | |
| 通讯作者 | Zhang, Xue(xuezhang@imr.ac.cn) ; Li, Ying(liying@imr.ac.cn) |
| 2024-07-02 | |
| 发表期刊 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| 页码 | 10 |
| 摘要 | Pyrochemical reprocessing utilizing a molten LiCl-KCl eutectic medium is regarded as the most promising approach for recovering uranium and transuranic elements from spent metallic nuclear fuels. However, the harsh corrosiveness of molten chloride poses a significant challenge to the durability of structural materials. Herein, we report the corrosion behavior of 304 SS, 316H SS and Inconel 800H in LiCl-KCl eutectic salt at 550 degrees C for 100 h under an argon atmosphere. Experimental results indicate that all three materials can form a rather continuous Cr2O3-based scale through oxidation reaction at the beginning, but only the scale developed on 800H maintains excellent protection against corrosion throughout the entire exposure period. In contrast, both 304 SS and 316H SS experience considerable active dissolution on the bare substrate under a detached scale. We suggest that the primary reasons for the outstanding resistance of 800H to molten salt corrosion are the high concentration of noble Ni in the system, which lowers the inclination for active dissolution, and the beneficial addition of Al, which accelerates the formation of a less defective Cr2O3-based scale. Our work offers an in-depth understanding on the corrosion performance of high-Cr alloys in molten chloride, insights critical for the selection and subsequent development of structural materials for pyrochemical reprocessing applications. |
| 关键词 | Corrosion High-chromium alloys Molten salt |
| 资助者 | Strategic Priority Research Program of the Chinese Academy of Sciences |
| DOI | 10.1007/s40195-024-01742-9 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA0410203] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| WOS类目 | Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:001261215700004 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/187708 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zhang, Xue; Li, Ying |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Mengmeng,Li, Xin,Liu, Zihe,et al. Corrosion Behavior of High-Chromium Alloys in Molten LiCl-KCl Eutectic[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:10. |
| APA | Ji, Mengmeng,Li, Xin,Liu, Zihe,Yang, Xiaoguang,Zhang, Xue,&Li, Ying.(2024).Corrosion Behavior of High-Chromium Alloys in Molten LiCl-KCl Eutectic.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10. |
| MLA | Ji, Mengmeng,et al."Corrosion Behavior of High-Chromium Alloys in Molten LiCl-KCl Eutectic".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):10. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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