Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn²⁺ System

Table 5

Corrosion parameters of carbon steel immersed in sea water in the absence and presence of inhibitors obtained by polarization method.

L-Arg ppm	Zn^2+ ppm	𝐸corr mV versus SCE	𝐼corr Acm^−2	𝑏𝑎 mV decade^−1	𝑏𝑐 mV decade^−1	LPR Ωcm^2
0	0	−784	7.042 × 10^−6	232	139	5.375 × 10^3
250	25	−758	6.133 × 10^−6	207	151	6.185 × 10^3