4-amino-3-substituted-5-mercapto-1,2,4-triazolines as inhibitors for the acid corrosion of steel

1986 ◽  
Vol 27 (4) ◽  
pp. 325-334 ◽  
Author(s):  
B.A. Abd-El-Nabey ◽  
A. El-Toukhy ◽  
M. El-Gamal ◽  
F. Mahgoob
Keyword(s):  
Acid Corrosion ◽  
Corrosion Of Steel

Experiment Study on Degradation Laws of Sulfuric Acid Corrosion Reinforcements

2018 ◽  
Vol 878 ◽  
pp. 23-27 ◽  
Author(s):  
Ming Qiang Lin ◽  
Feng Juan Dai ◽  
Jia Tao Li
Keyword(s):  
Sulfuric Acid ◽  
Acid Corrosion ◽  
Constitutive Models ◽  
Corrosion Damage ◽  
Uniform Corrosion ◽  
Steel Bars ◽  
Relationship Model ◽  
Strain Relationship ◽  
Sulfuric Acid Corrosion ◽  
Corrosion Of Steel

The corrosion of concrete structures is serious in sulfuric acid environments. Corrosion damage of reinforcements caused sulfuric acid corrosion is very serious. The rapid experiments of sulfuric acid corrosion steel bars were carried out, and the apparent morphology and mechanical properties of sulfuric acid corrosion steel bars were studied. The results show that the corrosion of steel bars is uniform corrosion. With the increase of corrosion rate, the yield platforms and the yield strengths and ultimate strengths are reduced. Based on the experimental datas, the relationship models between yield strengths and ultimate strengths and corrosion rates were obtained. The constitutive models of corrosion steel bars were established. The stress - strain relationship model is in good agreement with the experimental data.

Carbonic Acid Corrosion of Steel

CORROSION ◽  
1975 ◽  
Vol 31 (5) ◽  
pp. 177-181 ◽  
Author(s):  
C. DE WAARD ◽  
D. E. MILLIAMS
Keyword(s):  
Carbonic Acid ◽  
Acid Corrosion ◽  
Corrosion Of Steel

Electrochemical study on the effect of Schiff base and its cobalt complex on the acid corrosion of steel

2009 ◽  
Vol 51 (12) ◽  
pp. 3021-3024 ◽  
Author(s):  
A.M. Abdel-Gaber ◽  
M.S. Masoud ◽  
E.A. Khalil ◽  
E.E. Shehata
Keyword(s):  
Schiff Base ◽  
Acid Corrosion ◽  
Cobalt Complex ◽  
Electrochemical Study ◽  
Corrosion Of Steel

Study of the inhibition of the acid corrosion of steel by auger electron spectroscopy

1987 ◽  
Vol 30 (2) ◽  
pp. 199-205 ◽  
Author(s):  
B.A. Abd El-Nabey ◽  
E. Khamis ◽  
G.E. Thompson ◽  
J.L. Dawson
Keyword(s):  
Auger Electron Spectroscopy ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Acid Corrosion ◽  
Corrosion Of Steel

scholarly journals Adsorption Action of Phosphine Inhibitors on the Corrosion of Steel

1995 ◽  
Vol 12 (4) ◽  
pp. 279-291 ◽  
Author(s):  
E. Khamis ◽  
Sh. Kandil ◽  
A.K. Ibrahim
Keyword(s):  
Active Sites ◽  
Acid Corrosion ◽  
Kinetic Equations ◽  
Lateral Interaction ◽  
Free Energy Of Adsorption ◽  
Protection Efficiency ◽  
Low Concentrations ◽  
Maximum Inhibition ◽  
Corrosion Of Steel ◽  
Temkin Adsorption Isotherm

Phosphine compounds were investigated for their possible use as acid corrosion inhibitors. Electrochemical, weight loss and gasometry methods were employed to study the protective effect of triphenyl phosphine (TPP) and carboethoxy methylene triphenyl phosphorane (CMTPP). The inhibiting effect of TPP is estimated as 100% for an inhibitor concentration of 0.0005 M. Potentiodynamic polarization data indicate that both compounds act predominantly as cathodic inhibitors. The maximum inhibition efficiency was afforded by CMTPP at low concentrations, whereas at higher concentrations the protection efficiency of TPP increases. This was discussed on the basis of steric hindrance. The mode of adsorption of the inhibitors on the steel surface is proposed, as well as empirical kinetic equations based on the cathodic reaction. These were supported by fitting the experimental data to the Temkin adsorption isotherm and to the thermodynamic/kinetic model of adsorption. The free energy of adsorption, the binding constant, the lateral interaction and the number of active sites are reported and discussed.

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