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Long-term corrosion evolution associated with the structural heterogeneities of an Fe-based amorphous coating in H3BO3 solution at various temperatures

文献类型：期刊论文

作者Wang, D. B.1,2; Wu, J.3; Cui, J. P.1; Wang, Q.1,2; Li, T. R.1,2; Emori, W.4; Zhang, S. D.1; Wang, J. Q.1
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2023-03-20
卷号140页码:233-248
ISSN号1005-0302
关键词AMC Boric acid EIS Long-term corrosion Temperature
DOI10.1016/j.jmst.2022.08.039
通讯作者Zhang, S. D.(sdzhang@imr.ac.cn) ; Wang, J. Q.(jqwang@imr.ac.cn)
英文摘要Understanding the long-term corrosion behavior of neutron absorber materials in H3BO3 solution is cru-cial for the materials applications in spent fuel storage. In this paper, long-term corrosion evolution for 180 d in relation to the structural heterogeneities of an Fe-based amorphous coating (AMC) in H3BO3 solution at various temperatures was systematically investigated. Results indicate that the coating cor-rosion could be divided into three distinct stages. Initially, the corrosion resistance increased owing to the thickening and composition evolution of the passive films. Subsequently, the corrosion rate was kept almost constant in the second stage, which connected with the steady state of the passive film. Finally, the corrosion resistance of coating reduced gradually owing to the initiation and penetration of local-ized corrosion. Interestingly, it was revealed that the localized corrosion was initiated at the relatively Cr-depleted amorphous matrix in the deep pores of the coating. This could be attributed to the synergy of Cr-depletion and occlusive effect in the deep pores during long-term immersion. With the elevation of temperature, the localized corrosion was enhanced due to the accumulation of the H + in the pores to swiftly reach the critical conditions for passive film breakdown. This work provides insights into the long-term corrosion mechanism of Fe-based AMCs in H3BO3 solution and offers meaningful contributions to the design of new corrosion resistant neutron absorbing coatings for spent fuel storage applications. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目National Natural Science Foundation of China[U1908219] ; National Natural Science Foundation of China[52171163] ; Key Research Program of the Chinese Academy of Sciences[ZDRW- CN-2021-2-2]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者JOURNAL MATER SCI TECHNOL
WOS记录号WOS:000891885400005
资助机构National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/176131]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhang, S. D.; Wang, J. Q.
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chongqing Univ, Coll Bioengn, Minist Educ, Key Lab Biorheol Sci & Technol, 40 0 044, Chongqing, Peoples R China
4.Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Wang, D. B.,Wu, J.,Cui, J. P.,et al. Long-term corrosion evolution associated with the structural heterogeneities of an Fe-based amorphous coating in H3BO3 solution at various temperatures[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,140:233-248.
APA Wang, D. B..,Wu, J..,Cui, J. P..,Wang, Q..,Li, T. R..,...&Wang, J. Q..(2023).Long-term corrosion evolution associated with the structural heterogeneities of an Fe-based amorphous coating in H3BO3 solution at various temperatures.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,140,233-248.
MLA Wang, D. B.,et al."Long-term corrosion evolution associated with the structural heterogeneities of an Fe-based amorphous coating in H3BO3 solution at various temperatures".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 140(2023):233-248.

入库方式： OAI收割

来源：金属研究所

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