Effect of Strain Levels on the Corrosion Resistance of an Enamel-Coated Steel Rebar

The effect of strain levels on the corrosion resistance an enamel-coated steel rebar is experimentally investigated in this study. Enamel coating was applied surface a by using wet process. A gauge attached coated to record and plastic container mounted for electrochemical tests. stress-corrosion test set-up designed conduct tensile tests simultaneously. considered include 0 µε, 300 600 900 µε 1200 techniques employed open circuit potential, linear polarization impedance spectroscopy. microstructure enamel also examined with scanning electron microscopy. Results show that has thickness ~150 µm, there are some air bubbles coating. average current density uncoated decreases from 18.64 µA/cm2 14.39 NaCl solution due generation products. gradually increases 0.49 when zero 0.65 as reaches which almost 40 times lower than rebar. Impedance spectrum results increase level; however, it still protects degree.