, Sumit Kumar

In the present investigation effect of Triethylenetetramine (TETA] and 2-(2-aminoethylamino) ethanol [AEAE] as corrosion inhibitors for N80 steel in 15 % HCl solution was studied by polarization, AC impedance (EIS) and weight loss measurements. It was found that both the inhibitors were effective inhibitors and their inhibition efficiency was significantly increased with increasing concentration of inhibitors. Polarization studies revealed that the studied inhibitors represent mixed-type inhibitors. AC impedance studies revealed that charge transfer resistance increases and double layer capacitance decreases in presence of inhibitors. Adsorption of inhibitors at the surface of N80 steel was found to obey Langmuir isotherm