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Corrosion Inhibition by Natural
Extracts at 50oC |
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This work involves investigation on
corrosion inhibition of steel 37-2 using Cinnamon, Ficus carica
and Sweet clover extracts as natural inhibitors at 50oC by
electrochemical measurements and AFM test. The data of
polarization in blank electrolyte containing 3mL/L of each
extract in electrolyte gave inhibition efficiencies equal to
86.051, 74.025 and 83.935% in presence 3mL/L of Cinnamon, Ficus
carica and Sweet clover extract respectively. The data of AFM
test shows the decreasing in roughness of surface after adding
the natural inhibitor which equal to 0.631, 4.13 and 1.1nm
corresponding to 3mL/L of Cinnamon, Ficus carica and Sweet
clover extract respectively compared with the roughness Ra of
polished and uninhibited surface as 8.39 and 44.7 nm
respectively. |
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