The change of cathode/anode roles and corrosion forms in 2024/Q235/304 tri-metallic couple with the variation of oxygen concentrations and area ratios

doi:10.1016/j.corsci.2021.109400

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	The change of cathode/anode roles and corrosion forms in 2024/Q235/304 tri-metallic couple with the variation of oxygen concentrations and area ratios
	Shi, Linjun 1,2; Song, Yingwei 1,3; Dong, Kaihui 1; Wang, Haitao 1; Shan, Dayong 1; Han, En-Hou 1
刊名	CORROSION SCIENCE
	2021-05-15
卷号	184 页码:17
关键词	Tri-metallic galvanic corrosion Cathode anode role change Corrosion form change Oxygen concentrations Area ratios FEM
ISSN号	0010-938X
DOI	10.1016/j.corsci.2021.109400
通讯作者	Song, Yingwei(ywsong@imr.ac.cn)
英文摘要	The galvanic corrosion of 2024/Q235/304 tri-metallic couple with different area ratios was systematically investigated in deoxygenated, aerated, and oxygenated 3.5 wt.% NaCl. It is found that the galvanic corrosion deteriorates with increasing of oxygen concentrations. Moreover, the variation of oxygen concentrations and area ratios can result in the cathode/anode role change of Q235. Galvanic corrosion may lead to the change of the corrosion forms of anodic metals, which depends on their own microstructure: Both uncoupled and coupled Q235 show uniform corrosion. However, uncoupled 2024 shows pitting corrosion and coupled 2024 shows intergranular corrosion.
资助项目	National Key Research and Development Program of China[2017YFB0702100] ; Innovation Group of Marine Engineering Materials and Corrosion Control, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000639163600001
资助机构	National Key Research and Development Program of China ; Innovation Group of Marine Engineering Materials and Corrosion Control, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/162402]
专题	金属研究所_中国科学院金属研究所
通讯作者	Song, Yingwei
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519080, Peoples R China
推荐引用方式 GB/T 7714	Shi, Linjun,Song, Yingwei,Dong, Kaihui,et al. The change of cathode/anode roles and corrosion forms in 2024/Q235/304 tri-metallic couple with the variation of oxygen concentrations and area ratios[J]. CORROSION SCIENCE,2021,184:17.
APA	Shi, Linjun,Song, Yingwei,Dong, Kaihui,Wang, Haitao,Shan, Dayong,&Han, En-Hou.(2021).The change of cathode/anode roles and corrosion forms in 2024/Q235/304 tri-metallic couple with the variation of oxygen concentrations and area ratios.CORROSION SCIENCE,184,17.
MLA	Shi, Linjun,et al."The change of cathode/anode roles and corrosion forms in 2024/Q235/304 tri-metallic couple with the variation of oxygen concentrations and area ratios".CORROSION SCIENCE 184(2021):17.