Effects of NaCl and SO2 on the initial atmospheric corrosion of zinc

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	Effects of NaCl and SO2 on the initial atmospheric corrosion of zinc
	Q. Qu; C. W. Yan; Y. Wan; C. N. Cao
	2002
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	44 期号:12 页码:2789-2803
摘要	The influence of NaCI deposition on the corrosion of zinc in atmospheres with and without SO2 was studied via quartz crystal microbalance. Regularity of the initial corrosion of zinc under these conditions was analyzed. The results show that NaCl can accelerate the corrosion of zinc. Mass gain of zinc increases with the exposure time, which can be correlated by using exponential decay function. The relationship between mass gain and amount of NaCl deposition is well linear at any time in air containing 1 ppm SO2, but follows quadratic function in air without SO2. More amount of NaCI deposition will slow down the corrosion to some extent after exposure for certain time in the presence of SO2. The combined effect of NaCl and SO2 on the corrosion of zinc is greater than that caused by each single component. Fourier transform infrared spectroscopy and X-ray diffraction were used to characterize the corrosion products of zinc. In the absence of SO2, simonkolleite, Zn-5(OH)(8)Cl-2 (.) H2O and zincite, ZnO are the dominant corrosion products, while zinc hydroxysulfate (Zn4SO4(OH)(6) (.) 3H(2)O), zinc chloride sulfate hydroxide hydrate (Zn-12(SO4)(3)Cl-3 (.) (OH)(15) (.) 5H(2)O) and simonkolleite dominate in the presence of SO2. Brief discussion on the mechanisms of atmospheric corrosion under these conditions was introduced. (C) 2002 Elsevier Science Ltd. All rights reserved.
部门归属	chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china. yunnan univ, dept chem, kunming 650091, peoples r china.;qu, q (reprint author), chinese acad sci, state key lab corros & protect, inst met res, 62 wencui rd, shenyang 110016, peoples r china
关键词	Zinc Atmospheric Corrosion Corrosion Regularity Quartz Crystal Microbalance Nacl So2 Sulfur-dioxide
URL	查看原文
WOS记录号	WOS:000178148800009
引用统计	被引频次：132[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/321006/36399
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Qu,C. W. Yan,Y. Wan,et al. Effects of NaCl and SO2 on the initial atmospheric corrosion of zinc[J]. Corrosion Science,2002,44(12):2789-2803.
APA	Q. Qu,C. W. Yan,Y. Wan,&C. N. Cao.(2002).Effects of NaCl and SO2 on the initial atmospheric corrosion of zinc.Corrosion Science,44(12),2789-2803.
MLA	Q. Qu,et al."Effects of NaCl and SO2 on the initial atmospheric corrosion of zinc".Corrosion Science 44.12(2002):2789-2803.