Low-Carbon Steel Corrosion at High Temperatures by Aminopolycarboxylic Acids

2017 ◽  
Author(s):  
Jun Hong Ng ◽  
Tariq Almubarak ◽  
Hisham Nasr-El-Din ◽  
Sama Almubarak
Keyword(s):  
Carbon Steel ◽  
High Temperatures ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Aminopolycarboxylic Acids

Low-Carbon-Steel Corrosion at High Temperatures by Aminopolycarboxylic Acids

2018 ◽  
Vol 33 (01) ◽  
pp. 131-144 ◽  
Author(s):  
Jun Hong Ng ◽  
Tariq Almubarak ◽  
Hisham A. Nasr-El-Din
Keyword(s):  
Carbon Steel ◽  
High Temperatures ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Aminopolycarboxylic Acids

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

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

ACTIVE-POLYPHENOLIC-COMPOUNDS-RICH GREEN INHIBITOR FOR THE SURFACE PROTECTION OF LOW CARBON STEEL IN ACIDIC MEDIUM

2019 ◽  
Vol 27 (06) ◽  
pp. 1950154 ◽  
Author(s):  
ILL-MIN CHUNG ◽  
VENKATESAN HEMAPRIYA ◽  
PONNUSAMY KANCHANA ◽  
NATARAJAN ARUNADEVI ◽  
SUBRAMANIAN CHITRA ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Low Carbon ◽  
Green Inhibitor ◽  
Surface Protection ◽  
Langmuir Adsorption ◽  
Phytochemical Components

Eco-friendly biodegradable Rhododendron schlippenbachii (R. schlippenbachii) green inhibitors, R. schlippenbachii methanolic (RSMeOH) extract, which can effectively reduce low carbon steel corrosion rate, were investigated using weight-loss and electrochemical (electrochemical impedance spectroscopy) techniques. The inhibitors exhibited higher efficiency by retarding the corrosion process in 1[Formula: see text]M H2SO4 and the inhibition efficiency is found to be concentration dependent. The reactivity of the predominant phytochemical components of the extract are analyzed. The adsorption of inhibitors on low carbon steel is followed the Langmuir adsorption. The protective inhibitor film formed on the metal surface was confirmed by SEM and AFM techniques.

Comparison of the Protection Performance of Calciofon and Rosmarinus Officinalis on Low Carbon Steel Corrosion in Petrochemical Drilling Fluid

2021 ◽  
Vol 1046 ◽  
pp. 143-150
Author(s):  
Roland Tolulope Loto
Keyword(s):  
Carbon Steel ◽  
Drilling Fluid ◽  
Low Carbon Steel ◽  
Specific Inhibitor ◽  
Steel Corrosion ◽  
Steel Specimen ◽  
Chemical Compounds ◽  
Carbon Steels ◽  
Rosmarinus Officinalis ◽  
Low Carbon

Application of sustainable chemical compounds for corrosion protection of carbon steels employed in H2O formed petrochemical drilling fluid environment (WPDF) is an effective alternative to toxic chemical compounds. The protection performance of calciofon (CF) and rosmarinus officinalis (RS) on low carbon steel (LST) in WPDF was studied with potentiodynamic polarization technique and optical microscopic characterization. Results output depict CF and RS performed adequately at specific inhibitor concentrations with average inhibition performance above 80% for CG and 90% for RS. CG exhibited mixed type inhibition effect compared to RS which exhibited anodic inhibition. The polarization curves obtained in the presence of both compounds showed they induce passivation of LST surface after anodic polarization before breakdown at the transpassive region from the lowest to highest concentration inhibitor concentrations due to their film forming and adsorption characteristics. This observation was corroborated from the protected steel surfaces which contrasts the non-protected control steel specimen which exhibited severe surface deterioration, corrosion pits and numerous furrows.

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