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

doi:10.1016/j.jmrt.2023.10.295

IMR OpenIR

	Evolution of corrosion degradation in galvanised steel bolts exposed to a tropical marine environment
	Daniel, Enobong Felix 1,2,5; Wang, Changgang 1,2,5; Li, Chao 1,2; Dong, Junhua 1,2,5; Udoh, Inime Ime 3; Zhang, Dongjiu 4; Zhong, Wenan 4; Zhong, Sheng 4
通讯作者	Daniel, Enobong Felix(efdaniel@imr.ac.cn) ; Wang, Changgang(cgwang@imr.ac.cn) ; Dong, Junhua(jhdong@imr.ac.cn)
	2023-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	27 页码:5177-5190
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.
关键词	Bolt-nut fastener Galvanised steel Bolt threads Crevice Chloride ions Atmospheric corrosion
资助者	Youth Innovation Promotion Association of the Chinese Academy of Sciences, China ; National Natural Science Foundation of China, China ; CAS-TWAS President's Fellowship
DOI	10.1016/j.jmrt.2023.10.295
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001115517300001
出版者	ELSEVIER
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177145
专题	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.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China 4.Xichang Satellite Launch Ctr, Key Lab Space Launching Site Reliabil, Haikou 571126, Hainan, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, 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.