The effect of microstructure and elemental content on corrosion and corrosion inhibition of mild steel in a 0.5 M H2SO4 environment

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 93907-93916 ◽  
Author(s):  
Maduabuchi A. Chidiebere ◽  
Emeka E. Oguzie ◽  
Li Liu ◽  
Ying Li ◽  
Akram N. Alshawabkeh ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Corrosion Behavior ◽  
Electrochemical Techniques ◽  
Low Carbon Steel ◽  
Elemental Content ◽  
Surface Microstructure ◽  
Low Carbon ◽  
Surface Probe

The effect of composition and surface microstructure on the corrosion behavior of low carbon steel specimens from Nigeria (NCS) and China (CCS) in a 0.5 M H2SO4 solution has been studied using electrochemical techniques and surface probe techniques.

Phenylcoumarin Glucoside as a Natural Inhibitor in the Protection of Low Carbon Steel Against Corrosion

MRS Advances ◽  
2017 ◽  
Vol 2 (62) ◽  
pp. 3909-3915
Author(s):  
Héctor M. Barbosa Cásarez ◽  
Araceli Espinoza Vázquez ◽  
Francisco J. Rodríguez-Gomez
Keyword(s):  
Carbon Steel ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Low Concentrations ◽  
Natural Inhibitor ◽  
Polarization Studies

AbstractPhenylcoumarin glucoside (4-PC) is a compound extracted from the plant Hintona latiflora and was studied as inhibitor for AISI 1018 steel corrosion in 3% NaCl solution using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, which may find application as eco-friendly corrosion inhibitors. The 4-PC provides inhibitor properties that protect AISI 1018 low carbon steel against corrosion at low concentrations (5 ppm) obtained by EIS. Polarization studies showed that the inhibitor was of mixed type. The inhibition efficiency by the two electrochemical techniques shows similar results. The inhibitor adsorption was demonstrated to be a combined process (physisorption and chemisorption) according to the Langmuir isotherm.

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