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Electrochemical Behavior of Steel Bar in Electrolytes:Influence of pH Value and Cations 被引量:1
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作者 濮琦 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第6期1133-1136,共4页
Steel bar corrosion on electrolytes and the influence of cation were investigated. Three electrolytes of Ca(OH)2, NaOH and KOH with pH levels of 12.5, 11.5, 10.5, 9.5, 8.5 were prepared, meanwhile, the methods of fr... Steel bar corrosion on electrolytes and the influence of cation were investigated. Three electrolytes of Ca(OH)2, NaOH and KOH with pH levels of 12.5, 11.5, 10.5, 9.5, 8.5 were prepared, meanwhile, the methods of free corrosion potential and electrochemical impedance spectra (EIS) were used to evaluate the influence of cations on the depassivation of the steel bar in electrolytes. The experimental results indicate that the initial corrosion pH value of the steel bar is influenced by the cation in electrolyte and the influence of K+ in electrolyte is the most remarkable, followed by Na+ and Ca2+. The initial corrosion pH values are 10.5 in KOH electrolyte, 9.5 in NaOH electrolyte and lower than 8.5 in Ca(OH)2 electrolyte. 展开更多
关键词 steel bar corrosion CATION pH value
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