【摘 要】
：
Corrosion inhibitors for steel,such as sodium phosphate (Na3PO4),sodium nitrite (NaNO2),and benzotriazole (BTA),in simulated concrete pore solutions (saturated
【机 构】
：
School of Materials Science and Engineering,Jiangsu Key Laboratory of Construction Materials
论文部分内容阅读
Corrosion inhibitors for steel,such as sodium phosphate (Na3PO4),sodium nitrite (NaNO2),and benzotriazole (BTA),in simulated concrete pore solutions (saturated Ca(OH)2) were investigated.Corrosion behaviors of steel in different solutions were studied by means of corrosion potential (Ecorr),linear polarization resistance (LPR),electrochemical impedance spectroscopy (EIS),and potentiodynamic polarization (PDP).A field emission scanning electron microscope (FESEM) equipped with energy dispersive X-ray analysis (EDXA) was used for observing the microstructures and morphology of corrosion products of steel.The results indicate that,compared with the commonly used nitrite-based inhibitors,Na3PO4 is not a good inhibitor,while BTA may be a potentially effective inhibitor to prevent steel from corrosion in simulated concrete pore solutions.
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