Development of Poly(aniline-co-o-toluidine)/TiO2 nanocomposite coatings for low carbon steel corrosion in 3.5% NaCl solution

2018 ◽  
Vol 32 (23) ◽  
pp. 2552-2568 ◽  
Author(s):  
Jeenat Aslam ◽  
Irfan Hussain Lone ◽  
Nagi Radwan ◽  
Mohammad Mobin ◽  
Saman Zehra ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Nanocomposite Coatings ◽  
Low Carbon ◽  
Nacl Solution ◽  
Poly Aniline

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.

Joint effect of Fe(II) and Fe(III) cations on corrosion of low-carbon steel in mixture of sulfuric and phosphoric acids containing composite inhibitors based on IFKhAN-92

2021 ◽  
pp. 18-29
Author(s):  
Ya.G. Avdeev ◽  
◽  
A.V. Panova ◽  
T.E. Andreeva ◽  
Yu.I. Kuznetsov ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Joint Effect ◽  
Molar Ratio ◽  
Protective Effects ◽  
Low Carbon ◽  
Experimental Conditions ◽  
Component Mixture ◽  
Similar Solutions

Corrosion of 08PS low-carbon steel was studied in a wide temperature range t = 25—100 °C in 1 M H2SO4 + 1 M H3PO4, 2 M H2SO4 и 2 M H3PO4, inhibited by the binary mixture IFKhAN-92 + KNCS (a molar ratio of components 9:1) and a three-component mixture IFKhAN-92 + KNCS + urotropine (9:1:400), in the presence of high concentrations of Fe(III) and Fe(II) salts, as well as in their joint presence. It is shown that under experimental conditions the corrosion inhibitors under study provide effective protection of steel in 1 M H2SO4 + 1 M H3PO4 even in the presence of Fe(III), Fe(II) salts or their mixtures. The highest protective effects are provided by a three-component inhibitor mixture. Under similar conditions in individual 2 M H3PO4 and, especially, 2 M H2SO4, the protective effects of inhibitors are lower. A stronger deceleration of steel corrosion by composite inhibitors based on IFKhAN-92 in H2SO4 + H3PO4 solutions containing Fe(III) salts in comparison with similar solutions of individual H2SO4, is largely due to the binding of Fe(III) cations by phosphate anions into complexes, that significantly reduces their chemical activity and, as a result the corrosion rate of steel.

Performance of Synthesized Acetone Based Inhibitor on Low Carbon Steel Corrosion in 1 M HCl Solution

2019 ◽  
Vol 3 (1) ◽  
pp. 263-276 ◽  
Author(s):  
Hameed B. Mahood ◽  
Asaad H. Sayer ◽  
Athraa H. Mekky ◽  
Anees A. Khadom
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Hcl Solution

Conducting polyaniline/multi-wall carbon nanotubes composite paints on low carbon steel for corrosion protection: electrochemical investigations

2013 ◽  
Vol 67 (8) ◽  
Author(s):  
Pravin Deshpande ◽  
Sanket Vathare ◽  
Shashikant Vagge ◽  
Elena Tomšík ◽  
Jaroslav Stejskal
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Steel ◽  
Corrosion Protection ◽  
Open Circuit Potential ◽  
Electrochemical Impedance ◽  
Low Carbon Steel ◽  
Open Circuit ◽  
Low Carbon ◽  
Multi Wall Carbon Nanotubes ◽  
Poly Aniline

AbstractThe coaxial coating of multi-wall carbon nanotubes (MWCNT) with poly(aniline) (PANI) was synthesised and a paint was prepared containing conducting PANI-MWCNT composite. The corrosion protection performance was assessed by open circuit potential measurements, potentiodynamic polarisation, and electrochemical impedance spectroscopy. The corrosion rate of low-carbon steel coated with 1.5 mass % of PANI-MWCNT-based paint in 3.5 mass % sodium chloride solution was found to be 0.037 mm y−1, about 5.2 times lower than that of unpainted low-carbon steel and 3.6 times lower than that of epoxy painted steel.

scholarly journals Assessment of Low Carbon Steel Corrosion Inhibition by Eco-Friendly Green Chaenomeles sinensis Extract in Acid Medium

2018 ◽  
Vol 9 (3) ◽  
pp. 238-249 ◽  
Author(s):  
Ill-Min Chung ◽  
Venkatesan Hemapriya ◽  
Kanchana Ponnusamy ◽  
Natarajan Arunadevi ◽  
Subramanian Chitra ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Chaenomeles Sinensis
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