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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, Linjun1,2; Song, Yingwei1,3; Dong, Kaihui1; Wang, Haitao1; Shan, Dayong1; Han, En-Hou1
Corresponding AuthorSong, Yingwei(ywsong@imr.ac.cn)
2021-05-15
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume184Pages:17
AbstractThe 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.
KeywordTri-metallic galvanic corrosion Cathode anode role change Corrosion form change Oxygen concentrations Area ratios FEM
Funding OrganizationNational Key Research and Development Program of China ; Innovation Group of Marine Engineering Materials and Corrosion Control, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
DOI10.1016/j.corsci.2021.109400
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000639163600001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/162406
Collection中国科学院金属研究所
Corresponding AuthorSong, Yingwei
Affiliation1.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
Recommended Citation
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.
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