Investigation of corrosion behavior and film formation on 90Cu-10Ni alloys immersed in simulated seawater

doi:10.1016/j.ijoes.2023.100244

IMR OpenIR

	Investigation of corrosion behavior and film formation on 90Cu-10Ni alloys immersed in simulated seawater
	Su, Ying 1,2; Li, Liang 3; Yin, Wenchang 3; Chu, Guangzhe 3; Guan, Yong 1
通讯作者	Guan, Yong(yguan@imr.ac.cn)
	2023-09-01
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	18 期号:9 页码:12
摘要	The corrosion behavior and formation of the corrosion product film of three 90Cu-10Ni alloys, namely Pipe A, Pipe B, and Pipe C, after being immersed in simulated seawater for different time were investigated using electrochemical techniques, electron backscattered diffraction (EBSD) technology, scanning electron microscopy/energy-dispersive X-ray detector (SEM/EDS), and X-ray photoelectron spectroscopy (XPS). The results demonstrated that there were no obvious differences in chemical composition, but some differences in grain size and number of annealing twins for the three alloys. Pipes with large grains and fewer annealing twins had better corrosion resistance. It was found that a protective corrosion product film enriched with Fe and Ni was formed on the surface of the alloys after different immersion periods. The corrosion current densities Icorr of the alloys decreased while the film resistance Rf increased with time. After 30 days of immersion, a hollow and discontinuous layer was identified on Pipe C. Compared to Pipe C, the other two pipes showed better corrosion resistance, which was due to a compact and continuous layer bonding firmly with the substrate. The formation process of the corrosion product film on 90Cu-10Ni alloys with the increasing immersion time in simulated seawater was discussed.
关键词	Corrosion behavior 90Cu-10Ni alloy Characterization Corrosion product film Electrochemistry Electrochemical mechanism
资助者	National Science Foundation for Distinguished Young Scholars of China
DOI	10.1016/j.ijoes.2023.100244
收录类别	SCI
语种	英语
资助项目	National Science Foundation for Distinguished Young Scholars of China[51201169]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:001048648100001
出版者	ELSEVIER
引用统计	被引频次：2[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/321006/178955
专题	中国科学院金属研究所
通讯作者	Guan, Yong
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, Hefei 230026, Peoples R China 3.Unit 92228 Peoples Liberat Army, Beijing 100072, Peoples R China
推荐引用方式 GB/T 7714	Su, Ying,Li, Liang,Yin, Wenchang,et al. Investigation of corrosion behavior and film formation on 90Cu-10Ni alloys immersed in simulated seawater[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2023,18(9):12.
APA	Su, Ying,Li, Liang,Yin, Wenchang,Chu, Guangzhe,&Guan, Yong.(2023).Investigation of corrosion behavior and film formation on 90Cu-10Ni alloys immersed in simulated seawater.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,18(9),12.
MLA	Su, Ying,et al."Investigation of corrosion behavior and film formation on 90Cu-10Ni alloys immersed in simulated seawater".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 18.9(2023):12.