中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
CATHODIC ELECTROCHEMICAL BEHAVIORS OF MILD STEEL IN SEAWATER

文献类型:期刊论文

作者Zou Yan1; Zheng Yingying1; Wang Yanhua1; Wang Jia1,2
刊名ACTA METALLURGICA SINICA
出版日期2010-01-11
卷号46期号:1页码:123-128
关键词mild steel corrosion in seawater rust layer electrochemical impedance spectrum (EIS) polarization curve
ISSN号0412-1961
DOI10.3724/SP.J.1037.2009.00374
通讯作者Wang Jia(jwang@ouc.edu.cn)
英文摘要The cathodic electrochemical behavior of A3 mild steel in seawater was studied and the roles of the formed rust layers in cathodic process were analyzed by means of electrochemical tests and XRD. The results showed that the rust formed could be classified into outer layer and inner layer. The inner layer is mainly composed of gamma-FeOOH, alpha-FeOOH, beta-FcOOH and Fe(3)O(4)/gamma-Fe(2)O(3), while the main phases in the outer layer changed with the increase of immersion time. During the initial immersion period of 126 d, the phase is gamma-FeOOH; but after about 364 d immersion, the phases are gamma-FeOOH, alpha-FeOOH and Fe(3)O(4)/gamma-Fe(2)O(3). These rust layers play different roles in the cathodic process. Both the outer and inner rust layers can prevent the dissolved oxygen from diffusing into the steel substrate, while the inner layer could also participate in reduction reaction which accelerated the cathodic reaction. A parameter a was induced to evaluate the participation degree of rust in the reduction reaction. The value of parameter alpha obviously increased during the first 7 d immersion, and almost didn't change after 168 d immersion. Changes of components in outer and inner layers were discussed and the interactions of different components were analyzed.
资助项目National Natural Science Foundation of China[50971118]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000274823200020
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China
源URL[http://ir.imr.ac.cn/handle/321006/99826]  
专题金属研究所_中国科学院金属研究所
通讯作者Wang Jia
作者单位1.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714
Zou Yan,Zheng Yingying,Wang Yanhua,et al. CATHODIC ELECTROCHEMICAL BEHAVIORS OF MILD STEEL IN SEAWATER[J]. ACTA METALLURGICA SINICA,2010,46(1):123-128.
APA Zou Yan,Zheng Yingying,Wang Yanhua,&Wang Jia.(2010).CATHODIC ELECTROCHEMICAL BEHAVIORS OF MILD STEEL IN SEAWATER.ACTA METALLURGICA SINICA,46(1),123-128.
MLA Zou Yan,et al."CATHODIC ELECTROCHEMICAL BEHAVIORS OF MILD STEEL IN SEAWATER".ACTA METALLURGICA SINICA 46.1(2010):123-128.

入库方式: OAI收割

来源:金属研究所

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