Polat korroziyasın ingibirlewdi elektroximiyalıq usıl járdeminde izertlew

Abstract

The aim of this article is to study a phosphorus-containing oligomer as a corrosion inhibitor for carbon steel in an aggressive solution (1 M HCl). The effect of the phosphorus-containing oligomer based on cyanuric acid and phosphorus(V) chloride at various concentrations was evaluated by potentiodynamic polarization. As the concentration of PSK-1 in 1 M HCl increased, the cathodic and anodic corrosion current densities decreased markedly, which indicates that the phosphorus-containing oligomeric inhibitor can act on both the cathodic and the anodic reactions. The Ecorr value of the polymer was −451.7 mV, so it is classified as a mixed-type inhibitor. According to the polarization parameters, the phosphorus oligomer at 500 mg/l in 1 M HCl shows a remarkably high inhibition efficiency of 97.76%, and the inhibition efficiency rises with increasing oligomer concentration.