Hydrogen permeation behavior and corrosion monitoring atmospheric of steel in cyclic wet-dry environment

doi:10.1002/maco.200704051

	Hydrogen permeation behavior and corrosion monitoring atmospheric of steel in cyclic wet-dry environment
	Zheng, C.; Huang, Y.; Huo, C.; Yu, Q.
	2007-09-01
发表期刊	MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
ISSN	0947-5117
卷号	58 期号:9 页码:696-700
文章类型	Article
摘要	Hydrogen permeation of 16Mn steel under a cyclic wet-dry condition was investigated by Devanathan-Stachurski's electrolytic cell with a membrane covered on the exit side by a nickel layer and the weight loss was measured for each wet-dry cycle. The results show that hydrogen permeation current change with different atmospheric environment: distilled water, seawater, and seawater containing 100 ppm H2S. The results show that seawater can induce an increase in the hydrogen permeation current due to the hydrolyzation reaction. And after the increase, equilibrium is reached due to the equilibrium of hydrolyzation reaction effect and the block of the rust layer. On the other hand, H2S contamination also can induce an increase in the maximum hydrogen permeation current due to the hydrolyzation reaction. And H2S contamination delays the time that hydrogen permeation is detected because of the formation of the FeS(1-x) film. The FeS(1-x) film can block the absorption of hydrogen onto the specimen surface. The surface potential change and the pH change of the metal surface control the hydrogen permeation current. And a clear linear correlation exists between the quantities of hydrogen permeated through the 16Mn steel and the weight loss. Based on the linear correlation, we monitored the corrosion rate by monitoring the hydrogen permeation current by a sensor outside. Good coherences were shown between results in laboratory and outside.; Hydrogen permeation of 16Mn steel under a cyclic wet-dry condition was investigated by Devanathan-Stachurski's electrolytic cell with a membrane covered on the exit side by a nickel layer and the weight loss was measured for each wet-dry cycle. The results show that hydrogen permeation current change with different atmospheric environment: distilled water, seawater, and seawater containing 100 ppm H2S. The results show that seawater can induce an increase in the hydrogen permeation current due to the hydrolyzation reaction. And after the increase, equilibrium is reached due to the equilibrium of hydrolyzation reaction effect and the block of the rust layer. On the other hand, H2S contamination also can induce an increase in the maximum hydrogen permeation current due to the hydrolyzation reaction. And H2S contamination delays the time that hydrogen permeation is detected because of the formation of the FeS(1-x) film. The FeS(1-x) film can block the absorption of hydrogen onto the specimen surface. The surface potential change and the pH change of the metal surface control the hydrogen permeation current. And a clear linear correlation exists between the quantities of hydrogen permeated through the 16Mn steel and the weight loss. Based on the linear correlation, we monitored the corrosion rate by monitoring the hydrogen permeation current by a sensor outside. Good coherences were shown between results in laboratory and outside.
关键词	Cracking Entry
DOI	10.1002/maco.200704051
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000250149700007
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/6226
专题	海洋环境腐蚀与生物污损重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Tubular Goods Res Ctr China Natl Petr Corp, Xian 710065, Peoples R China
推荐引用方式 GB/T 7714	Zheng, C.,Huang, Y.,Huo, C.,et al. Hydrogen permeation behavior and corrosion monitoring atmospheric of steel in cyclic wet-dry environment[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2007,58(9):696-700.
APA	Zheng, C.,Huang, Y.,Huo, C.,&Yu, Q..(2007).Hydrogen permeation behavior and corrosion monitoring atmospheric of steel in cyclic wet-dry environment.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,58(9),696-700.
MLA	Zheng, C.,et al."Hydrogen permeation behavior and corrosion monitoring atmospheric of steel in cyclic wet-dry environment".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 58.9(2007):696-700.

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