Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
Figure 4
AC impedance spectra of carbon steel immersed in test solution (phase-Bode plot) (pH = 8). (a) Well water (blank). (b) Well water + DL-phenylalanine (150 ppm) + Zn2+ (5 ppm).