Study on potential distribution of atmospheric corrosion using a scanning Kelvin probe

IMR OpenIR

	Study on potential distribution of atmospheric corrosion using a scanning Kelvin probe
	Wang, J ; Wang, Y
通讯作者	Wang, J(jwang@mail.ouc.edu.cn)
	2005-09-01
发表期刊	SURFACE COATINGS INTERNATIONAL PART B-COATINGS TRANSACTIONS
ISSN	1476-4865
卷号	88 期号:3 页码:197-200
摘要	A scanning Kelvin probe setup was developed for potential map measurements, and the characteristic of a potential distribution for atmospheric corrosion of metal with salt particle deposition was investigated using this setup. It was found that as the relative humidity increased to a level higher than that over the saturated solution of the salt, the potential map changed from homogeneity into heterogeneity, which formed initially a valley, then a volcano shape. As a result, atmospheric corrosion was initiated due to the heterogeneity shown by the potential distribution, which led to the formation of anodes and cathodes on the metal surface. It also indicated that ambient relative humidity and dry-and-wet cycles played an important role in accelerating the corrosion process shown by the changing potential map. In addition, the potential map had a close relationship with the chemical maps of the corrosion products. Based on the above findings, a model was proposed and discussed for describing the initiation of atmospheric corrosion resulting from salt particle deposition.
关键词	potential map atmospheric corrosion scanning Kelvin probe
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Engineering ; Materials Science
WOS类目	Chemistry, Applied ; Engineering, Chemical ; Materials Science, Coatings & Films
WOS记录号	WOS:000232310600007
出版者	OIL & COLOUR CHEMISTS ASSOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/83299
通讯作者	Wang, J
作者单位	1.Ocean Univ China, Dept Chem, Qingdao 266003, Peoples R China 2.State Key Lab Corros & Protect Met, Shenyang, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, J,Wang, Y. Study on potential distribution of atmospheric corrosion using a scanning Kelvin probe[J]. SURFACE COATINGS INTERNATIONAL PART B-COATINGS TRANSACTIONS,2005,88(3):197-200.
APA	Wang, J,&Wang, Y.(2005).Study on potential distribution of atmospheric corrosion using a scanning Kelvin probe.SURFACE COATINGS INTERNATIONAL PART B-COATINGS TRANSACTIONS,88(3),197-200.
MLA	Wang, J,et al."Study on potential distribution of atmospheric corrosion using a scanning Kelvin probe".SURFACE COATINGS INTERNATIONAL PART B-COATINGS TRANSACTIONS 88.3(2005):197-200.