scholarly journals Corrosion Behaviour of Mild Steel in Acidic Medium in Presence of Aqueous Extract ofAllamanda Blanchetii

2011 ◽  
Vol 8 (1) ◽  
pp. 226-230 ◽  
Author(s):  
B. Anand ◽  
V. Balasubramanian
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibition ◽  
Aqueous Extract ◽  
Inhibition Efficiency ◽  
Corrosion Behaviour ◽  
Time Interval ◽  
Time Intervals ◽  
Steel Material ◽  
Weight Loss Method ◽  
Loss Method

The inhibition efficiency (IE) of an aqueous extract ofAllamanda blanchetii(Purple) in controlling corrosion of mild steel which has been evaluated by weight loss method in the absence and presence of corrosion inhibitor at different time intervals at room temperature. The result showed that the corrosion inhibition efficiency ofAllamanda blanchetiiwas found to vary with different time interval and different acid concentrations. Also, it was found that the corrosion inhibition behavior ofAllamanda blanchetiiis greater in sulphuric acid than citric acid medium. SoAllamanda blanchettican be used as a good inhibitor for preventing mild steel material. The surface analysis study confirms the corrosion of the mild steel and its inhibition by the inhibitorAllamanda blanchetii.

scholarly journals Corrosion Inhibition of Mild Steel in Citric Acid by Aqueous Extract ofPiper NigrumL.

2012 ◽  
Vol 9 (1) ◽  
pp. 75-78 ◽  
Author(s):  
P. Matheswaran ◽  
A. K. Ramasamy
Keyword(s):  
Citric Acid ◽  
Mild Steel ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Aqueous Extract ◽  
Inhibition Efficiency ◽  
Piper Nigrum ◽  
Time Interval ◽  
Steel Material ◽  
Weight Loss Method

The inhibition efficiency (IE) of an aqueous extract ofPiper NigrumL. in controlling corrosion of mild steel at pH 12 has been evaluated by weight loss method in the absence and presence of inhibitor in citric acid medium at different concentration. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with the different concentration at two hour time interval at room temperature. Also, it was found that the corrosion inhibition behaviour ofPiper NigrumL. is greater in 2 N Citric acid than 1 N Citric acid medium. SoPiper NigrumL. can be used has a good inhibitor for preventing mild steel material which is used in many construction purpose.

scholarly journals Inhibition of Mild Steel Corrosion in Acidic Medium by Aqueous Extract ofTridax procumbensL.

2011 ◽  
Vol 8 (2) ◽  
pp. 685-688 ◽  
Author(s):  
G. Ilayaraja ◽  
A. R. Sasieekhumar ◽  
P. Dhanakodi
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibition ◽  
Aqueous Extract ◽  
Inhibition Efficiency ◽  
Steel Corrosion ◽  
Time Interval ◽  
Mild Steel Corrosion ◽  
Steel Material ◽  
Tridax Procumbens ◽  
Weight Loss Method

The inhibition efficiency (IE) of an aqueous extract ofTridax procumbensL. in controlling corrosion of mild steel has been investigated by weight loss method in the absence and presence of corrosion inhibitor at different time interval at room temperature. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with different time interval and different acid concentration. Also, it was found that the corrosion inhibition behavior ofTridax procumbensL. is greater in sulphuric acid than hydrochloric acid medium. SoTridax procumbensL. can be used as a good inhibitor for preventing mild steel material.

scholarly journals A Comparative Study on Corrosion Inhibition of Mild Steel UsingPiper NigrumL. in Different Acid Medium

2010 ◽  
Vol 7 (3) ◽  
pp. 942-946 ◽  
Author(s):  
B. Anand ◽  
V. Balasubramanian
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Mild Steel ◽  
Acid Medium ◽  
Sulphuric Acid ◽  
Corrosion Inhibition ◽  
Piper Nigrum ◽  
Time Interval ◽  
Weight Loss Method ◽  
Loss Method

The inhibition of corrosion of mild steel usingPiper nigrumL in different acid medium by weight loss method was investigated. The corrosion inhibition was studied in hydrochloric acid and sulphuric acid by weight loss method at different time interval at room temperature. The result showed that the corrosion inhibition efficiency of this compound was found to vary with different time interval and different acid concentration. Also, it was found that the corrosion inhibition behavior ofPiper nigrumL is greater in sulphuric acid than hydrochloric acid. So,Piper nigrumL can be used as a good inhibitor for preventing mild steel material.

scholarly journals Influence of Benzotriazole on Corrosion Inhibition of Mild Steel in Citric Acid Medium

2010 ◽  
Vol 7 (3) ◽  
pp. 1090-1094 ◽  
Author(s):  
P. Matheswaran ◽  
A. K. Ramasamy
Keyword(s):  
Citric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order ◽  
First Order Kinetics ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Benzotriazole an organic compounds has been studied as corrosion inhibition for mild steel in 1 N citric acid by weight loss method. The result showed that the corrosion inhibition efficiency of the compound was found to be varying with the temperature and acid concentration. Also it was found that the corrosion inhibition behaviour of benzotriazole is better when the concentration of inhibitor is increased. The kinetic treatment of the results shows first order kinetics.

scholarly journals Influence of Formazan Derivatives on Corrosion Inhibition of Mild Steel in Hydrochloric Acid Medium

2009 ◽  
Vol 6 (s1) ◽  
pp. S438-S444 ◽  
Author(s):  
P. Venkatesan ◽  
B. Anand ◽  
P. Matheswaran
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order Kinetics ◽  
Hydrochloric Acid Medium ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Formazan of benzaldehyde (FB) and formazan ofp-dimethyl amino benzaldehyde (FD) were synthesized. These compounds were studied as corrosion inhibitor for mild steel in 1.11 N hydrochloric acid by weight loss method. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with the temperature and acid concentration. Also, it was found that the corrosion inhibition behaviour of FD is greater than that of FB. The kinetic treatment of the results gave first order kinetics. The relative corrosion inhibition efficiency of these compounds has been explained on the basis of structure dependent - electron donor properties of the inhibitors.

SYNERGISTIC EFFECT OF HALIDE IONS ON THE CORROSION INHIBITION OF MILD STEEL IN SULPHURIC ACID USING METHYL, N-METHYL ETHYL AND ETHYL SUBSTITUTED γ-2,c-6-DIPHENYL PIPERIDIN-4-ONE SEMICARBAZONES

2018 ◽  
Vol 25 (02) ◽  
pp. 1850050
Author(s):  
V. SHANMUGA PRIYA ◽  
C. UMA RANI ◽  
S. VELRANI
Keyword(s):  
Weight Loss ◽  
Synergistic Effect ◽  
Mild Steel ◽  
Sulphuric Acid ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Halide Ions ◽  
Ac Impedance Spectroscopy ◽  
Weight Loss Method ◽  
Loss Method

The synergistic effect of halide ions such as KCl, KBr and KI on the corrosion inhibition of mild steel in 1 N sulphuric acid by [Formula: see text]-2,c-6-diphenyl-t-3-methyl piperdin-4-ones with semicarbazone (01[Formula: see text]SC), [Formula: see text]-2,c-6-diphenyl-N-methyl-t-3-ethyl piperdin-4-ones with semicarbazone (02[Formula: see text]SC) and 2,6-diphenyl-t-3-ethyl piperdin-4-one with semicarbazone (03[Formula: see text]SC) has been examined by weight loss method, potentiodynamic polarization measurements and electrochemical AC impedance spectroscopy. Results show that substituted [Formula: see text]-2,c-6-diphenyl piperidin-4-ones with semicarbazone act as the perfect corrosion inhibitors and their inhibition efficiency increases with the addition of halide ions. The inhibitor (01[Formula: see text]SC) shows the inhibition efficiency of 78.28% (0.2[Formula: see text]mM) by using a weight loss method. The influence of I[Formula: see text], Br[Formula: see text] and Cl[Formula: see text] anions raises the inhibition efficiency of the substituted 2,6-diphenyl piperidin-4-ones with semicarbazone due to the synergistic effect. The synergistic effect of halide ions was formed in the following order: KI [Formula: see text] KBr [Formula: see text] KCl.

scholarly journals Corrosion Inhibition Effect of Acidic Extract of Bark of Eucalyptus Globulus on Mild Steel

2020 ◽  
Vol 35 (1) ◽  
pp. 1-10
Author(s):  
Dipak Kumar Gupta ◽  
Laxmi Awasthi ◽  
Anju Kumari Das ◽  
Brahamdeo Yadav ◽  
Anita Ghimire ◽  
...  
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibition ◽  
Eucalyptus Globulus ◽  
Open Circuit Potential ◽  
Inhibition Efficiency ◽  
Acidic Solution ◽  
Open Circuit ◽  
Weight Loss Method ◽  
Loss Method ◽  
Mixed Type Inhibitor

The corrosion inhibition properties of the acidic extract of Eucalyptus globulus (EG) was investigated for mild steel (MS) using the weight loss method and open circuit potential (OCP) measurement. Corrosion inhibition of MS in 0.1M HCl was studied in the absence and presence of various concentrations of the acidic extract of EG barks. The results showed an increase in corrosion inhibition with increasing concentration of the extract. The inhibition efficiency of 100% EG extract was approximately 98.0% after 24 hours immersion in the acidic solution. FTIR spectrum showed the presence of compounds containing oxygen and nitrogen functional groups responsible for forming barrier layers onto MS surface. Open circuit potential (OCP) measurements showed that the EG extract acts as a mixed type inhibitor.

scholarly journals Synergistic Corrosion Inhibition Effect of Rice Husk Extract and KI for Mild Steel in H2SO4 Solution

2019 ◽  
Vol 14 (3) ◽  
pp. 697 ◽  
Author(s):  
Marta Pramudita ◽  
Sukirno Sukirno ◽  
Mohammad Nasikin
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibition ◽  
Potassium Iodide ◽  
Rice Husk ◽  
Inhibition Efficiency ◽  
Solution Temperature ◽  
H2so4 Solution ◽  
Isotherm Adsorption ◽  
Weight Loss Method ◽  
Loss Method

The corrosion inhibition of rice husk extract for bio-corrosion in mild steel in 1 M of H2SO4 solution and the effect of adding potassium iodide were investigated using the weight-loss method with a variable solution temperature and various bio-inhibitor concentrations. The addition of potassium iodide can significantly increase the efficiency of rice husk extract. The highest efficiency is 95.89% at 1,250 ppm of inhibitor concentration at a temperature of 313 K. The inhibition efficiency of rice husk extract is synergistically increased with the addition of potassium iodide. The characteristics of the adsorption inhibitors were assessed using the Langmuir isotherm adsorption approach at all studied concentrations and temperatures. The synergy of rice husk extract and potassium iodide was examined using thermodynamic and kinetic parameters. Copyright © 2019 BCREC Group. All rights reserved 

scholarly journals THERMODYNAMIC PROPERTIES AND CHARACTERIZATIONS OF CHITOSAN NANO-PARTICLES CORROSION INHIBITION ON THE SURFACE OF MILD STEELIN PEAT WATER MEDIA

2016 ◽  
Vol 12 (1) ◽  
pp. 27
Author(s):  
Maria Erna ◽  
Emriadi Emriadi ◽  
Admin Alif ◽  
Syukri Arief
Keyword(s):  
Thermodynamic Properties ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Steel Surface ◽  
Complex Compounds ◽  
Nano Particles ◽  
Water Media ◽  
Weight Loss Method ◽  
Steel Surfaces ◽  
Loss Method

The thermodynamic properties and characterizations of corrosion inhibition of chitosan nano-particles on the surface of mild steel in peat water media had been studied using weight loss method at temperatures of 30 - 50 <sup>o</sup>C. Steel surfaces were characterized by FT-IR spectra and SEM-EDS morphology photos. The research found that the value of DG<sup>o </sup>approaching -40 kJmol<sup>-</sup><sup>1</sup>. The negative value of Gibbs free energy shows that the adsorption of inhibitor molecules on the surface of mild steel was achemisorption and it occurred spontaneously. Meanwhile, the values of DH<sup>o </sup>is also negative confirming that the adsoprtion of inhibitor molecules is an exothermic process. The value of DS<sup>o </sup>obtained is positive, it indicates hat the inhibitor molecules were adsorbed spontaneously on the mild steel surface. The analysis on mild steel surfaces hows that the nano-particle chitosan was adsorbed on the steel surface to form the complex compounds.

scholarly journals Corrosion Inhibition of Mild Steel in Acidic Media by N-[(3,4-Dimethoxyphenyl)Methyleneamino]-4-Hydroxy-Benzamide

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Kashmitha Muthamma ◽  
Preethi Kumari ◽  
M. Lavanya ◽  
Suma A. Rao
Keyword(s):  
Dft Calculations ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Density Functional ◽  
Surface Characterization ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Corrosion Behaviour ◽  
Low Carbon ◽  
Acid Media

Abstract Mild steel (a low carbon steel) is an affordable engineering material used for many purposes in various environments including mild acidic environment with some precautions. The corrosion behaviour of mild steel (MS) in 0.5 M H2SO4 and 0.5 M HCl, in the temperature range (303–323 K) without and with the inhibitor N-[(3,4-dimethoxyphenyl) methyleneamino]-4-hydroxy-benzamide (DMHB), was investigated using Potentiodynamic polarization and Electrochemical impedance spectroscopy (EIS) techniques supplementing with surface characterization study using scanning electron microscope (SEM) and atomic force spectroscopy (AFM). Experimental observations were found to be in agreement with Density functional theory (DFT) calculations. The inhibition efficiency increases with increase in DMHB concentration and showed maximum inhibition efficiency of 86% in 0.5 M H2SO4 and 81% in 0.5 M HCl, respectively, at concentration of 3 × 10─3 M at 303 K. The inhibition efficiency of DMHB obtained relatively at its lower concentration (3 × 10─3 M) compared to other reported related compounds confirms its potential towards corrosion inhibition. The variation in the kinetic and thermodynamic parameters indicated physisorption of DMHB on MS and its mixed type inhibitive action followed Langmuir’s isotherm model. DFT calculations go along with the experimental results, signifying the potential corrosion inhibition behaviour of DMHB for MS in both the acid media.

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