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The reliability of electrochemical noise and current transients characterizing metastable pitting of Al-Mg-Si microelectrodes
L. Guan; B. Zhang; J. Q. Wang; E. H. Han; W. Ke
2014
Source PublicationCorrosion Science
ISSN0010-938X
Volume80Pages:1-6
AbstractCurrent transient measurements and electrochemical noise (EN) method have been used to characterize the metastable pitting events for Al-Mg-Si microelectrodes (diameter 50 mu m) in deaerated neutral 0.5 M NaCl solution. The results are compared with those obtained by atom force microscopy and scanning electron microscopy. The pit numbers determined by shot noise analysis at open circuit potential and by current transient analysis at -1.2 V (SCE) are both significantly less than those determined by corrosion morphology image analysis. These results indicate that larger discrepancies can be introduced if the anodic and cathodic reactions localize severely on the same electrode. (C) 2013 Elsevier Ltd. All rights reserved.
description.department[guan, l. ; zhang, b. ; wang, j. q. ; han, e. -h. ; ke, w.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; zhang, b (reprint author), 62 wencui rd, shenyang 110016, peoples r china. ; bxz011@imr.ac.cn
KeywordAluminium Alloy Electrochemical Calculation Afm Pitting Corrosion Alkaline Corrosion Stainless-steel Aluminum-alloys Surface-roughness Corrosion Pits Nucleation Growth Transition Initiation Stability
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/72478
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
L. Guan,B. Zhang,J. Q. Wang,et al. The reliability of electrochemical noise and current transients characterizing metastable pitting of Al-Mg-Si microelectrodes[J]. Corrosion Science,2014,80:1-6.
APA L. Guan,B. Zhang,J. Q. Wang,E. H. Han,&W. Ke.(2014).The reliability of electrochemical noise and current transients characterizing metastable pitting of Al-Mg-Si microelectrodes.Corrosion Science,80,1-6.
MLA L. Guan,et al."The reliability of electrochemical noise and current transients characterizing metastable pitting of Al-Mg-Si microelectrodes".Corrosion Science 80(2014):1-6.
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