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

doi:10.1016/j.jmst.2022.08.039

IMR OpenIR

	Long-term corrosion evolution associated with the structural heterogeneities of an Fe-based amorphous coating in H3BO3 solution at various temperatures
	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
通讯作者	Zhang, S. D.(sdzhang@imr.ac.cn) ; Wang, J. Q.(jqwang@imr.ac.cn)
	2023-03-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	140 页码:233-248
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.
关键词	AMC Boric acid EIS Long-term corrosion Temperature
资助者	National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences
DOI	10.1016/j.jmst.2022.08.039
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000891885400005
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176132
专题	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.