Role of CO2 in the initial stage of atmospheric corrosion of AZ91 magnesium alloy in the presence of NaCl

IMR OpenIR

	Role of CO2 in the initial stage of atmospheric corrosion of AZ91 magnesium alloy in the presence of NaCl
	Lin, C ; Li, XG
通讯作者	Lin, C(lincwi@sohu.com)
	2006-04-01
发表期刊	RARE METALS
ISSN	1001-0521
卷号	25 期号:2 页码:190-196
摘要	The effect of CO2 and NaCl on the initial stage of atmospheric corrosion of AZ91 magnesium alloy was studied. The observation of surface morphology by optical microscopy (OM), scanning electron microscopy (SEM) and the analysis of corrosion products by X-ray diffraction (XRD) were integrated to investigate corrosion evolution. The results showed that NaCl stimulated the corrosion by promoting the formation of thin electrolyte film, increasing the conductivity and breaking the protective film in the absence of CO2. The morphology of the corroded samples with deposited NaCl was more homogenous in the presence of CO2. It was suggested that NaCl-induced corrosion was inhibited in the presence Of CO2 by the formation of slightly soluble corrosion products containing hydroxy carbonates and hydroxy chlorides that provided a partly protective layer on the surface of the magnesium alloy.
关键词	materials science atmospheric corrosion initial stage AZ91 magnesium alloy inhibition
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000237267100016
出版者	NONFERROUS METALS SOCIETY CHINA
引用统计	被引频次：20[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/321006/86389
专题	中国科学院金属研究所
通讯作者	Lin, C
作者单位	1.Nanchang Inst Aeronaut Technol, Dept Mat Sci & Technol, Nanchang 330034, Peoples R China 2.Univ Sci & Technol Beijing, Ctr Corros & Protect, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Lin, C,Li, XG. Role of CO2 in the initial stage of atmospheric corrosion of AZ91 magnesium alloy in the presence of NaCl[J]. RARE METALS,2006,25(2):190-196.
APA	Lin, C,&Li, XG.(2006).Role of CO2 in the initial stage of atmospheric corrosion of AZ91 magnesium alloy in the presence of NaCl.RARE METALS,25(2),190-196.
MLA	Lin, C,et al."Role of CO2 in the initial stage of atmospheric corrosion of AZ91 magnesium alloy in the presence of NaCl".RARE METALS 25.2(2006):190-196.