Inhibition Pitting Corrosion of A-890-1B Stainless steel in NaCl Solution by 5-amino-1,3,4 - thiadiazole -2- thiol

摘要

The pitting potential of ASTM A-890-1B stainless steel at different sodium chloride activities andconstant temperature was studied. As sodium chloride activity increases, the pitting potentialdecreases, favoring localized corrosion. In addition, the effect of different 5-amino-1,3,4-thiadiazole - 2- thiol concentrations at a 3.5% NaCl concentration and constant temperature was assessed, showingthat the greater the inhibitor concentration, the greater the pitting potential. In the same way, thepitting potential decreases as temperature increases in NaCl constant concentration.