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Anoxic Corrosion Behavior of Pipeline Steel in Acidic Soils
M. C. Yan; C. Sun; J. Xu; W. Ke
2014
Source PublicationIndustrial & Engineering Chemistry Research
ISSN0888-5885
Volume53Issue:45Pages:17615-17624
AbstractAcidic red soils are highly corrosive toward carbon steel, but the corrosive nature of this particular soil has not been well documented. Electrochemical techniques including Tafel plots, electrochemical impedance spectroscopy, and weigh loss test were used to characterize the properties and nature of pipeline corrosion in a typical acidic red soil at different water content values. The results show that corrosion rate and type and intensity of corrosion attack are significantly dependent on the soil water content and hence the soil moisture droplet or film absorbed on the steel surface. The corrosion rate increases with the water content up to ca. 30% soil water content (100% water-holding capacity), and it decreases with further increases in water content in the long-term test. The evolution of a kinetic parameter and a Fe oxide facilitating corrosion mechanism is proposed and discussed for the anaerobic corrosion of steel in acidic soils.
description.department[yan, maocheng ; sun, cheng ; xu, jin ; ke, wei] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; yan, mc (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china. ; yanmc@imr.ac.cn
KeywordImpedance Spectroscopy Atmospheric Corrosion Mild-steel Cathodic Protection Ferrous-metals Iron Environment Microscopy Mechanism Moisture
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73461
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
M. C. Yan,C. Sun,J. Xu,et al. Anoxic Corrosion Behavior of Pipeline Steel in Acidic Soils[J]. Industrial & Engineering Chemistry Research,2014,53(45):17615-17624.
APA M. C. Yan,C. Sun,J. Xu,&W. Ke.(2014).Anoxic Corrosion Behavior of Pipeline Steel in Acidic Soils.Industrial & Engineering Chemistry Research,53(45),17615-17624.
MLA M. C. Yan,et al."Anoxic Corrosion Behavior of Pipeline Steel in Acidic Soils".Industrial & Engineering Chemistry Research 53.45(2014):17615-17624.
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