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Influence of Malus domestica and Caesalpinia bonducella Leaf Extracts on the Corrosion Behaviour of Mild Steel in H2SO4 Solution

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Academic year: 2019

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Figure

Figure 1.  Potentiodynamic polarization curves for steel in 0.5 M H2SO4 solutions in the absence and the presence of 0.2g/ CB and  MD leaf extracts at 30°C.
Table 1. The electrochemical corrosion parameters for steel in 0.5 M H2SO4 solutions in the absence and the presence of different concentrations of CB and MD leaf extracts at 30oC
Figure 2 shows the variations of degree of surface coverage (potentiodynamic polarization measurements with the leaf extracts concentration
Figure 3. Nyquist impedance plots for steel in 0.5 M H2SO4 solution in the absence and the presence of 0.2g/L CB and MD leaf extracts at 30°C
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