A study of the film formation kinetics on zinc in different acidic corrosion inhibitor solutions by quartz crystal microbalance

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	A study of the film formation kinetics on zinc in different acidic corrosion inhibitor solutions by quartz crystal microbalance
	D. H. Wang; X. Tang; Y. Y. Qiu; F. X. Gan; G. Z. Chen
	2005
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	47 期号:9 页码:2157-2172
摘要	Chromates conversion coatings provide very effective corrosion protection for many metals. However, the high toxicity of chromate leads to an increasing interest in using non-toxic alternatives such as molybdates, silicates, rare earth metal ions and etc. In this work, quartz crystal microbalance (QCM) was applied as an in-situ technique to follow the film formation process on zinc (plated on gold) in acidic solutions containing an inorganic inhibitor, i.e. potassium chromate, sodium silicate, sodium molybdate or cerium nitrate. Using an equation derived in this work, the interfacial mass change during the film formation process under different conditions was calculated, indicating three different film formation mechanisms. In the presence of K2CrO4 or Na2SiO3, the film growth follows a mix-parabolic law, showing a process controlled by both ion diffusion and surface reaction. The apparent kinetic equations are 0.4t = -17.4 + 20 Delta m(f) + (Delta m(f))(2) and 0.1t = 19.0 + 8.4 Delta m(f) + 10(Delta m(f))(2) respectively (t and Delta m are in seconds and mu g/cm(2)). In solutions containing Na2MoO4, a logarithmic law of Delta m(f) = -24.7 + 6.6 ln t was observed. Changing the inhibitor to Ce(NO3)(3), the film growth was found to obey an asymptote law that could be fit into the equation of Delta m(f) 55.1(1 - exp(-2.6 x 10(t)(-3))). (C) 2004 Elsevier Ltd. All rights reserved.
部门归属	wuhan univ, coll chem & mol sci, lab electrochem, wuhan 430072, peoples r china. wuhan univ, coll resource & environm sci, wuhan 430072, peoples r china. state key lab corros & protect, shenyang 110016, peoples r china. univ nottingham, sch chem environm & mineral engn, nottingham ng7 2rd, england.;wang, dh (reprint author), wuhan univ, coll chem & mol sci, lab electrochem, wuhan 430072, peoples r china;dhwang@mail.edu.com
关键词	Zinc Inhibitor Film Formation Kinetics Quartz Crystal Microbalance 0.5 m Nacl Copper Corrosion Chromate-free Eqcm Passivation Alloys System
URL	查看原文
WOS记录号	WOS:000231233800003
引用统计	被引频次：43[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/321006/35065
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. H. Wang,X. Tang,Y. Y. Qiu,et al. A study of the film formation kinetics on zinc in different acidic corrosion inhibitor solutions by quartz crystal microbalance[J]. Corrosion Science,2005,47(9):2157-2172.
APA	D. H. Wang,X. Tang,Y. Y. Qiu,F. X. Gan,&G. Z. Chen.(2005).A study of the film formation kinetics on zinc in different acidic corrosion inhibitor solutions by quartz crystal microbalance.Corrosion Science,47(9),2157-2172.
MLA	D. H. Wang,et al."A study of the film formation kinetics on zinc in different acidic corrosion inhibitor solutions by quartz crystal microbalance".Corrosion Science 47.9(2005):2157-2172.