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

Figure 5

Three-dimensional AFM images of the surface of (a) polished carbon steel (control). (b) Carbon steel immersed in sea water (blank). (c) Carbon steel immersed in sea water containing L-Arg (250 ppm) + Zn²⁺ (25 ppm). (d) Polished carbon steel (control). (e) Carbon steel immersed in sea water (blank). (f) Carbon steel immersed in sea water containing L-Arg (250 ppm) + Zn²⁺ (25 ppm).

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