典型文献
Evaluation of Corrosion Inhibition of NO2- Intercalated LDHs on Steel Coated by Cement Paste
文献摘要：
The purpose of this study is to apply the steel coated by cement paste to evaluate the corrosion inhibition of NO2- intercalated Mg-Al layered double hydroxides (LDHs), which was prepared by a conventional calcination-rehydration method. The chloride equilibrium isotherm, open-circuit potential (OCP) and electrochemical impedance spectroscopy (EIS) of steel in the saturated Ca(OH)2 solution contaminated by chloride ions were measured. The microstructures of as-obtained LDHs and cement paste containing the LDHs were observed by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and mercury intrusion porosimetry (MIP). It is found that the technique using the steel coated by the cement paste layer containing the LDHs to represent the steel in real concrete can be applied to accurately evaluate the corrosion inhibition performance of NO2- intercalated LDHs in a short duration. The addition of NO2- intercalated Mg-Al LDHs can improve the absorption capacity of Cl- and the anti-corrosion property of cement paste layer. The combination actions of the refinement of pore structure, uptake of chloride ions and release of inhibitive NO2- contribute to the better corrosion protection property of cement paste layer. Moreover, a schematic mechanism of chloride intrusion for the steel specimen with cement paste layer is developed.
文献关键词：
中图分类号：
作者姓名：
WU You;XU Jinxia;MEI Youjin
作者机构：
College of Mechanics and Materials,Hohai University,Nanjing 210098,China
文献出处：
引用格式：
[1]WU You;XU Jinxia;MEI Youjin-.Evaluation of Corrosion Inhibition of NO2- Intercalated LDHs on Steel Coated by Cement Paste)[J].武汉理工大学学报（材料科学版）（英文版）,2022(03):399-409
A类：
Intercalated,inhibitive
B类：
Evaluation,Corrosion,Inhibition,NO2,LDHs,Steel,Coated,by,Cement,Paste,purpose,this,study,apply,steel,coated,cement,paste,evaluate,corrosion,inhibition,intercalated,Mg,layered,double,hydroxides,which,was,prepared,conventional,calcination,rehydration,method,chloride,equilibrium,isotherm,open,circuit,potential,OCP,electrochemical,impedance,spectroscopy,EIS,saturated,solution,contaminated,were,measured,microstructures,obtained,containing,observed,scanning,electron,microscope,ray,diffraction,Fourier,transform,infrared,FT,mercury,intrusion,porosimetry,MIP,It,found,that,technique,using,represent,real,concrete,applied,accurately,performance,short,duration,addition,improve,absorption,capacity,Cl,anti,property,combination,actions,refinement,pore,uptake,release,contribute,better,protection,Moreover,schematic,mechanism,specimen,developed
AB值：
0.528687
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