Research Article
Inhibitory Mechanism of Carbon Steel Corrosion in Sea Water by an Aqueous Extract of Henna Leaves
Table 7
AFM data for carbon steel surface immersed in inhibited and uninhibited environment.
| Samples | RMS () roughness (nm) | Average () roughness (nm) | Maximum peak-to-valley height (nm) |
| Polished carbon steel (Control) | 4.33 | 3.41 | 35.28 | Carbon steel immersed in sea water (blank) | 17.10 | 13.58 | 92.28 | Carbon steel immersed in sea water + HE (8 mL) + Zn2+ 25 (ppm) | 11.8 | 7.65 | 27.47 |
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