scholarly journals Deterioration resistance Behavior of Carbon Metal in Salt Water by Alanine- Zn2+ System

2020 ◽  
pp. 172-179
Keyword(s):  
Carbon Steel ◽  
Synergistic Effect ◽  
Mass Loss ◽  
Salt Water ◽  
System Function ◽  
Polarization Analysis ◽  
Metal Shell ◽  
Anodic Reaction ◽  
Afm Analysis ◽  
Loss Method

The inhibition effectiveness of Alanine - Zn2+ system in scheming deterioration of carbon steel in salt water has been evaluate by mass loss method. The formulation consisting of 250 ppm of Alanine and 25 ppm of Zn2+ has 87% IE. A synergistic effect exists among Alanine and Zn2+. Polarization analysis reveals to facilitate the Alanine - Zn2+ system function as an anodic inhibitor and the formulation controls the anodic reaction mostly. The character of the shielding film on metal shell has been analyzed by AFM analysis.

scholarly journals Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+System

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
S. Gowri ◽  
J. Sathiyabama ◽  
S. Rajendran
Keyword(s):  
Carbon Steel ◽  
Metal Surface ◽  
Sea Water ◽  
Protective Film ◽  
Anodic Reaction ◽  
Polarization Study ◽  
Afm Analysis ◽  
Weight Loss Method ◽  
Loss Method ◽  
Ac Impedance Spectra

The inhibition efficiency of L-Arginine-Zn2+system in controlling corrosion of carbon steel in sea water has been evaluated by the weight-loss method. The formulation consisting of 250 ppm of L-Arginine and 25 ppm of Zn2+has 91% IE. A synergistic effect exists between L-Arginine and Zn2+. Polarization study reveals that the L-Arginine-Zn2+system functions as an anodic inhibitor and the formulation controls the anodic reaction predominantly. AC impedance spectra reveal that protective film is formed on the metal surface. Cyclic voltammetry study reveals that the protective film is more compact and stable even in a 3.5% NaCl environment. The nature of the protective film on a metal surface has been analyzed by FTIR, SEM, and AFM analysis.

scholarly journals Allium Sativum (Garlic) Extract as Nontoxic Corrosion Inhibitor

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
K. Rajam ◽  
S. Rajendran ◽  
R. Saranya
Keyword(s):  
Carbon Steel ◽  
Mass Loss ◽  
Allium Sativum ◽  
Inhibition Efficiency ◽  
Garlic Extract ◽  
Well Water ◽  
Protective Film ◽  
Anodic Reaction ◽  
Polarization Study ◽  
Loss Method

The inhibition efficiency (IE) of an aqueous extract of garlic in controlling corrosion of carbon steel in well water in the absence and presence ofZn2+has been evaluated by mass-loss method. The formulation consisting of 2 mL of garlic extract and 25 ppmZn2+offers 70% inhibition efficiency to carbon steel immersed in well water. Polarization study reveals that this formulation controls the anodic reaction predominantly. FTIR spectra reveal that the protective film consists ofFe2+-allicin complex and Zn(OH)2.

Inhibition of Corrosion of Carbon Steel by Resorcinol-Zn2+ System in Well Water

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Benita Sherine ◽  
A. Jamal Abdul Nasser ◽  
S. Rajendran
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Inhibition Efficiency ◽  
Well Water ◽  
Protective Film ◽  
Zinc Ions ◽  
Immersion Period ◽  
Afm Analysis ◽  
Weight Loss Method ◽  
Loss Method

The inhibition efficiencies of inhibitor systems constituting various combinations of resorcinol and zinc ions in controlling corrosion of carbon steel immersed in well water have been evaluated by weight loss method. 75 ppm of zinc has 36% inhibition efficiency (Immersion period =7 days). When 100 ppm of resorcinol is added, the IE increases to 96%. The nature of the protective film formed on the metal surface has been analyzed by FTIR spectra, SEM and AFM analysis. The protective film is found to consist of Fe2+ - resorcinol complex and Zn(OH)2.

scholarly journals Microbiologically Influenced Corrosion of Carbon Steel Exposed to Biodiesel

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
S. Malarvizhi ◽  
Shyamala R. Krishnamurthy
Keyword(s):  
Air Pollution ◽  
Carbon Steel ◽  
Mass Loss ◽  
Jatropha Curcas ◽  
Fossil Fuels ◽  
Microbiologically Influenced Corrosion ◽  
Environmental Concerns ◽  
Corrosion Rates ◽  
Loss Method ◽  
Conducive Environment

Environmental concerns over worsening air pollution problems caused by emissions from vehicles and depletion of fossil fuels have forced us to seek fuels such as biodiesel which can supplement petrofuels. Biodiesels have the ability to retain water and provide a conducive environment for microbiologically influenced corrosion (MIC) which may cause difficulties during transportation, storage, and their use. This paper analyses the influence of bacteria on the corrosivity of biodiesel obtained from Jatropha curcas on carbon steel using mass loss method. Carbon steel showed the highest corrosion rates in B100 (100% biodiesel) both in the presence and in absence of bacteria. The surface analysis of the metal was carried out using SEM.

scholarly journals Corrosion Behavior of Copper and Carbon Steel in Acidic Media

2014 ◽  
Vol 11 (4) ◽  
pp. 1577-1582
Author(s):  
Baghdad Science Journal
Keyword(s):  
Carbon Steel ◽  
Hydrochloric Acid ◽  
Sulphuric Acid ◽  
Corrosion Behavior ◽  
Effect Of Temperature ◽  
Acidic Media ◽  
Corrosion Rates ◽  
Weight Loss Method ◽  
Acid Environment ◽  
Loss Method

The corrosion behavior of copper and carbon steel in 1M concentration of hydrochloric acid (HCl) and sulphuric acid (H2SO4) has been studied. The corrosion inhibition of copper and carbon steel in 1M concentration of hydrochloric acid (HCl) and sulphuric acid (H2SO4) by Ciprofloxacin has been investigated. Specimens were exposed in the acidic media for 7 hours and corrosion rates evaluated by using the weight loss method. The effect of temperature (from 283 ºK to 333 ºK), pH (from 1to 6), inhibitor concentration (10-4 to 10-2) has been studied. It was observed that sulphuric acid environment was most corrosive to the metals because of its oxidizing nature, followed by hydrochloric acid. The rate of metal dissolution increased with increasing exposure time. Corrosion rates of carbon steel in the acidic media found to be higher.

scholarly journals Study the corrosion inhibition of mix of caffeine and iodua for CT3 steel in 1M HCl solution by electrochemical methods

2017 ◽  
Vol 33 (3) ◽  
Author(s):  
Truong Thao
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Electrochemical Methods ◽  
Anodic Reaction ◽  
Mild Carbon Steel ◽  
Current Densities ◽  
Hcl Solution ◽  
Surface Observations

Abstract: Corrosion inhibition of mild carbon steel, CT3,  in 1.0 M HCl solution by iodide  (with different concentrations, from 0.1g/l to 5.0g/l), mix of caffeine and iodide was investigated by electrochemical methods and micro surface observations (SEM). Experiment result showed that: (1) as the concentration of iodide increases, the inhibition efficiency increases;  Iodide acts as a mix – type inhibitor but inhibits anodic reaction is predominant. (2) Mix of 1.0 g/l iodide ang caffeine acts as a typical mix – type inhibitor. the current densities of both of anodic and cathode are decline when concentration of caffeine is 1.0 g/l or more. Inhibition efficiency max is approximately 96% at concentration of 5.0 g/l caffeine, the inhibition efficiency maintained relatively stable within 5 days.  

Synergistic effect of silanes and azole for enhanced corrosion protection of carbon steel by polymeric coatings

2020 ◽  
Vol 138 ◽  
pp. 105386 ◽  
Author(s):  
Natalia Gladkikh ◽  
Yuriy Makarychev ◽  
Maxim Petrunin ◽  
Marina Maleeva ◽  
Ludmila Maksaeva ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Synergistic Effect ◽  
Corrosion Protection ◽  
Polymeric Coatings
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