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A Study on the Initial Corrosion Behavior of Carbon Steel Exposed to a Simulated Coastal-Industrial Atmosphere
Guo Mingxiao1,2; Pan Chen1; Wang Zhenyao1; Han Wei1
Corresponding AuthorPan Chen(cpan@imr.ac.cn)
2018-01-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume54Issue:1Pages:65-75
AbstractCarbon steels as common structural material have been widely used for basic facilities with the development of the city. In these service environments, carbon steel would inevitably encounter the atmospheric corrosion. Especially, the corrosion of carbon steels exposed to coastal-industrial atmosphere is very outstanding. However, the initial corrosion mechanism of carbon steel subjected to coastalindustrial environment still need to be clarified, which would be vital for predicating the subsequent corrosion process. In addition, although many scholars studied the synergism of SO2 and Cl, which obviously accelerates the corrosion of steel and reduces its service life, there is few research about the effect of the synergism of SO2 and Cl (in different proportion) on the early corrosion behavior of the carbon steel. Therefore, it is of great importance to investigate the initial corrosion mechanism of carbon steel and the effect of the synergism of SO2 and Cl (in different proportion) in the coastal-industrial atmosphere. In present work, the initial corrosion behavior of Q235 carbon steel exposed to a simulated coastal-industrial atmosphere has been studied by weight loss, XRD, SEM and electrochemical measurements. Also, the effect of the synergism of SO2 and Cl (in different proportion) on the early corrosion behavior of Q235 car-bon steel has been investigated. The results indicate that the initial corrosion behavior of carbon steel exposed to a simulated coastal-industrial atmosphere presented a transition from corrosion acceleration to deceleration, and the kinetics of accelerated corrosion process followed the empirical equation D= Atn. A double-layered corrosion product was formed on the surface of carbon steel after 24 h: the loose outer layer and relative dense inner layer; the synergistic effect between SO2 and Cl accelerated the corrosion of carbon steel. However, the change in the ratio of SO2 and Cl had no significant effect on the corrosion loss of carbon steel, and had not changed the composition of corrosion products formed on carbon steel surface. SO2 caused the corrosion morphology of carbon steel to tend to uniform corrosion.
Keywordcarbon steel atmospheric corrosion synergism
Funding OrganizationNational Natural Science Foundation of China
DOI10.11900/0412.1961.2017.00142
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51601199] ; National Natural Science Foundation of China[51671197] ; National Natural Science Foundation of China[51401222]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000418584100008
PublisherSCIENCE PRESS
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/127156
Collection中国科学院金属研究所
Corresponding AuthorPan Chen
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Guo Mingxiao,Pan Chen,Wang Zhenyao,et al. A Study on the Initial Corrosion Behavior of Carbon Steel Exposed to a Simulated Coastal-Industrial Atmosphere[J]. ACTA METALLURGICA SINICA,2018,54(1):65-75.
APA Guo Mingxiao,Pan Chen,Wang Zhenyao,&Han Wei.(2018).A Study on the Initial Corrosion Behavior of Carbon Steel Exposed to a Simulated Coastal-Industrial Atmosphere.ACTA METALLURGICA SINICA,54(1),65-75.
MLA Guo Mingxiao,et al."A Study on the Initial Corrosion Behavior of Carbon Steel Exposed to a Simulated Coastal-Industrial Atmosphere".ACTA METALLURGICA SINICA 54.1(2018):65-75.
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