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Evolution of corrosion degradation in galvanised steel bolts exposed to a tropical marine environment

文献类型：期刊论文

作者Daniel, Enobong Felix1,3,5; Wang, Changgang1,3,5; Li, Chao1,5; Dong, Junhua1,3,5; Udoh, Inime Ime4; Zhang, Dongjiu2; Zhong, Wenan2; Zhong, Sheng2
刊名JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
出版日期2023-11-01
卷号27页码:5177-5190
关键词Bolt-nut fastener Galvanised steel Bolt threads Crevice Chloride ions Atmospheric corrosion
ISSN号2238-7854
DOI10.1016/j.jmrt.2023.10.295
通讯作者Daniel, Enobong Felix(efdaniel@imr.ac.cn) ; Wang, Changgang(cgwang@imr.ac.cn) ; Dong, Junhua(jhdong@imr.ac.cn)
英文摘要The time-dependent degradation of galvanised steel bolts subjected to marine atmospheric exposure for a maximum period of 2 years in the Wenchang marine environment of Hainan province, South China, was investigated. The results showed that the zinc coating used as a protective surface finish deteriorated quickly due to the harsh environmental conditions. The deterioration of the zinc coating resulted in premature corrosion of the underlying steel substrate as early as 6 months. The main Zn corrosion products found at the initial exposure time were simonkollite (Zn5(OH)8Cl2 center dot H2O), hydrozincite (Zn5(OH)6(CO3)2), and zincite (ZnO). At subsequent exposure times, major steel corrosion products such as lepidocrocite (gamma-FeOOH), akaganeite (13-FeOOH), goethite (alpha-FeOOH), magnetite (Fe3O4), and maghemite (gamma-Fe2O3) were detected. Fe3O4/gamma-Fe2O3 was consistently found in the rust formed at both the exposed and crevice thread regions between 6 and 24 months of exposure. Based on the geometry of the bolt fastener, the corrosion rate and phase composition distribution varied between the two regions. Differences in oxygen exposure levels, corrosion kinetics, and electrochemical stability of the corrosion products were primary factors in these distinctive corrosion behaviours.
资助项目Youth Innovation Promotion Association of the Chinese Academy of Sciences, China[2019193] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences, China[KGFZD-135-19-02] ; National Natural Science Foundation of China, China[51801219] ; CAS-TWAS President's Fellowship
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001115517300001
出版者ELSEVIER
资助机构Youth Innovation Promotion Association of the Chinese Academy of Sciences, China ; National Natural Science Foundation of China, China ; CAS-TWAS President's Fellowship
源URL[http://ir.imr.ac.cn/handle/321006/177144]  
专题金属研究所_中国科学院金属研究所
通讯作者Daniel, Enobong Felix; Wang, Changgang; Dong, Junhua
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Xichang Satellite Launch Ctr, Key Lab Space Launching Site Reliabil, Haikou 571126, Hainan, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
4.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China
5.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Daniel, Enobong Felix,Wang, Changgang,Li, Chao,et al. Evolution of corrosion degradation in galvanised steel bolts exposed to a tropical marine environment[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,27:5177-5190.
APA Daniel, Enobong Felix.,Wang, Changgang.,Li, Chao.,Dong, Junhua.,Udoh, Inime Ime.,...&Zhong, Sheng.(2023).Evolution of corrosion degradation in galvanised steel bolts exposed to a tropical marine environment.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,27,5177-5190.
MLA Daniel, Enobong Felix,et al."Evolution of corrosion degradation in galvanised steel bolts exposed to a tropical marine environment".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 27(2023):5177-5190.

入库方式： OAI收割

来源：金属研究所

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