A comparative study of the corrosion inhibition of low carbon steel in HCl solution by an imine compound and its cobalt complex

2015 ◽  
Vol 101 ◽  
pp. 19-31 ◽  
Author(s):  
Hülya Keleş ◽  
Duygu Melis Emir ◽  
Mustafa Keleş
Keyword(s):  
Carbon Steel ◽  
Comparative Study ◽  
Corrosion Inhibition ◽  
Cobalt Complex ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Hcl Solution

scholarly journals Electrochemical studies of the synergistic combination effect of thymus mastichina and illicium verum essential oil extracts on the corrosion inhibition of low carbon steel in dilute acid solution

2020 ◽  
Vol 11 (1) ◽  
pp. 1-13
Author(s):  
Roland Tolulope Loto ◽  
Samuel Keme Ororo
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Open Circuit Potential ◽  
Low Carbon Steel ◽  
Open Circuit ◽  
Low Carbon ◽  
Inhibition Effect ◽  
Illicium Verum ◽  
Hcl Solution

AbstractInhibition effect of the synergistic combination of thymus mastichina and illicium verum oil extracts (TMAV) on the corrosion inhibition of low carbon steel in 0.5 M H2SO4 and HCl solution was studied by weight loss analysis, potentiodynamic polarization, open circuit potential measurement, ATF-FTIR spectroscopy, and optical microscopy and macroscopic characterization. Results from weight loss shows TMAV performed more effectively in H2SO4 solution compared to HCl with optimal inhibition efficiency of 81.24% and 68.33%. Effective inhibition performance was observed at all TMAV concentration in H2SO4 compared to HCl where TMAV performed poorly until 5% concentration. The optimal inhibition performances from potentiodynamic polarization are 80.85% and 70.43%. The corresponding corrosion current density and polarization resistance are 7.16 × 105 A/cm2 and 8.01 × 105 A/cm2, and 331.73 and 284 Ω. TMAV exhibited mixed type inhibition effect in both acid solutions, strongly influencing the anodic-cathodic plot configurations with respect to concentration. Open circuit potential plots without TMAV were significantly electronegative compared to the plots at 1% and 5% TMAV concentration which were relative electropositive due to decreased thermodynamic tendency of the carbon steel to corrode. The corresponding plots at 1% and 5% TMAV concentration from HCl solution were thermodynamically unstable with significant active-passive corrosion behaviour. TMAV inhibited through chemisorption adsorption according to Langmuir and Freudlich adsorption isotherms in H2SO4 solution, and Frumkin and Freundlich adsorption isotherms in HCl solution with correlation coefficient values between 0.7 and 0.9. FTIR spectroscopic analysis exposed the functional groups and atomic bonds responsible for corrosion inhibition.

Synergistic corrosion inhibition effect of 1-ethyl-1-methylpyrrolidinium tetrafluoroborate and iodide ions for low carbon steel in HCl solution

2016 ◽  
Vol 30 (21) ◽  
pp. 2383-2403 ◽  
Author(s):  
Husnu Gerengi ◽  
H. Ibrahim Ugras ◽  
Moses M. Solomon ◽  
Saviour A. Umoren ◽  
Mine Kurtay ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Iodide Ions ◽  
Inhibition Effect ◽  
Hcl Solution

Evaluation of 1‐Hexadecylbenzimidazole as a Corrosion Inhibitor on Low Carbon Steel 15 % HCl Solution Interface

2021 ◽  
Vol 6 (13) ◽  
pp. 3199-3217
Author(s):  
Nurudeen A. Odewunmi ◽  
Mohammad A. J. Mazumder ◽  
Shaikh A. Ali
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Solution Interface ◽  
Hcl Solution

Comparative study of warm and hydromechanical deep drawing for low-carbon steel

2015 ◽  
Vol 85 (1-4) ◽  
pp. 661-672 ◽  
Author(s):  
Raghuram Karthik Desu ◽  
Swadesh Kumar Singh ◽  
Amit Kumar Gupta
Keyword(s):  
Carbon Steel ◽  
Comparative Study ◽  
Deep Drawing ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Hydromechanical Deep Drawing
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