Scanning Kelvin probe measurements near salt particles on zinc and iron in high humidity

	Scanning Kelvin probe measurements near salt particles on zinc and iron in high humidity
	Wang, J ; Wang, Y
	2005-03-01
发表期刊	CORROSION
卷号	61 期号:3 页码:264-271
文章类型	Article
摘要	During the atmospheric corrosion process, the surface potential on zinc or steel samples in the presence of a single particle of sodium chloride (NaCl) or potassium chloride (KCl) was studied using a scanning Kelvin probe (SKP) technique, With the initiation and propagation of the atmospheric corrosion, the surface potential varied from flat to valley and then to volcano shape when the relative humidity (RH) was higher than that of the over-saturated solution of the salt (RHoss). These nonuniform potential distributions could be attributed to the local corrosion reactions and to the differential oxygen aeration under the solution droplet formed by the deliquescence of the salt particle. Continual measurements of surface potential during wet-dry cycles indicated that the potential difference between the peak and valley (the electromotive force of the corrosion cell) increased with an increasing number of wet-dry cycles. Based on the above observations, a model was proposed for describing the variations in the surface potential during the atmospheric corrosion process induced by a single deposited salt particle.
关键词	Atmospheric Corrosion Potential Distribution Relative Humidity Salt Deposition Scanning Kelvin Probe Surface Potential Wet-dry Cycle
收录类别	SCI
语种	英语
WOS记录号	WOS:000227746800008
引用统计	被引频次：5[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/337002/32514
专题	海洋环境腐蚀与生物污损重点实验室
作者单位	1.Ocean Univ Qingdao, Dept Chem & Chem Engn, Qingdao 266003, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, J,Wang, Y. Scanning Kelvin probe measurements near salt particles on zinc and iron in high humidity[J]. CORROSION,2005,61(3):264-271.
APA	Wang, J,&Wang, Y.(2005).Scanning Kelvin probe measurements near salt particles on zinc and iron in high humidity.CORROSION,61(3),264-271.
MLA	Wang, J,et al."Scanning Kelvin probe measurements near salt particles on zinc and iron in high humidity".CORROSION 61.3(2005):264-271.

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Scanning Kelvin prob（302KB）	期刊论文	出版稿	限制开放	ODC PDDL	浏览