Galvanic corrosion study between low alloy steel A508 and 309/308 L stainless steel dissimilar metals: A case study of the effects of oxide film and exposure time

doi:10.1016/j.jnucmat.2021.152853

IMR OpenIR

	Galvanic corrosion study between low alloy steel A508 and 309/308 L stainless steel dissimilar metals: A case study of the effects of oxide film and exposure time
	Okonkwo, Bright O.1,2; Ming, Hongliang 1; Meng, Fanjiang 3; Wang, Jianqiu 1; Xu, Xuelian 3; Han, En-Hou 1
通讯作者	Ming, Hongliang(hlming12s@imr.ac.cn) ; Wang, Jianqiu(wangjianqiu@imr.ac.cn)
	2021-05-01
发表期刊	JOURNAL OF NUCLEAR MATERIALS
ISSN	0022-3115
卷号	548 页码:11
摘要	The effects of oxide film and exposure time on the galvanic corrosion between low alloy steel (LAS) A508 and 309/308L stainless steel (SS) dissimilar metals were studied by several electrochemical techniques and surface composition analytical tools. The zero resistance ammeter (ZRA) result shows that the trend of galvanic corrosion current between the coupled LAS A508 and 309/308L SS changes with respect to exposure time. Furthermore, from the ZRA measurement, the quantitative relationship between galvanic current and dissolution rate of the coupled LAS A508 anode metal was established by statistical approach. Electrochemical impedance spectroscopy (EIS) results and analyses demonstrated that the increasing galvanic corrosion rate observed between the coupled dissimilar metals as exposure time prolonged was suppressed by the oxide film effect. The suppression occurred as a result of the transformation of unstable oxides to stable oxide forms, and the oxide film thickening phenomenon experienced on the LAS A508 surface as exposure time prolonged. Generally, a synergy between both effects was observed in this study. (c) 2021 Elsevier B.V. All rights reserved.
关键词	Low alloy steel Stainless steel ZRA XRD Galvanic corrosion Oxide film
资助者	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Key Program of the Chinese Academy of Sciences
DOI	10.1016/j.jnucmat.2021.152853
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771211] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC012] ; Key Program of the Chinese Academy of Sciences[ZDRW-CN-2017-1]
WOS研究方向	Materials Science ; Nuclear Science & Technology
WOS类目	Materials Science, Multidisciplinary ; Nuclear Science & Technology
WOS记录号	WOS:000635060500002
出版者	ELSEVIER
引用统计	被引频次：13[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/321006/162303
专题	中国科学院金属研究所
通讯作者	Ming, Hongliang; Wang, Jianqiu
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Shanghai Nucl Engn Res & Design Inst Ltd Co, 29 Hongcao Rd, Shanghai 200233, Peoples R China
推荐引用方式 GB/T 7714	Okonkwo, Bright O.,Ming, Hongliang,Meng, Fanjiang,et al. Galvanic corrosion study between low alloy steel A508 and 309/308 L stainless steel dissimilar metals: A case study of the effects of oxide film and exposure time[J]. JOURNAL OF NUCLEAR MATERIALS,2021,548:11.
APA	Okonkwo, Bright O.,Ming, Hongliang,Meng, Fanjiang,Wang, Jianqiu,Xu, Xuelian,&Han, En-Hou.(2021).Galvanic corrosion study between low alloy steel A508 and 309/308 L stainless steel dissimilar metals: A case study of the effects of oxide film and exposure time.JOURNAL OF NUCLEAR MATERIALS,548,11.
MLA	Okonkwo, Bright O.,et al."Galvanic corrosion study between low alloy steel A508 and 309/308 L stainless steel dissimilar metals: A case study of the effects of oxide film and exposure time".JOURNAL OF NUCLEAR MATERIALS 548(2021):11.