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Some aspects of the electrochemical behaviour of mild steel in carbonate/bicarbonate solutions
Electrochimica Acta, 1986Abstract The electrochemical behaviour of mild steel in aqueous solutions of sodium carbonate/sodium bicarbonate (600 ppm) has been investigated using potentiodynamic polarization. In the pre-passive region three well-defined peaks are observed associated to reduction peaks corresponding to Fe(II) and Fe(III) species.
C.M. Rangel, I.T. Fonseca, R.A. Leitão
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Electrochimica Acta, 1989
Abstract The transpassive dissolution of mild steel in aqueous equimolar carbonate/bicarbonate normally aerated solutions has been investigated using cyclic voltammetry. For the first time a transpassive anodic peak preceding oxygen evolution at E>1.100 V (sce) has been detected together with the corresponding reduction peak. The formation of Fe (VI)
C.M. Rangel, R.A. Leitão, I.T. Fonseca
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Abstract The transpassive dissolution of mild steel in aqueous equimolar carbonate/bicarbonate normally aerated solutions has been investigated using cyclic voltammetry. For the first time a transpassive anodic peak preceding oxygen evolution at E>1.100 V (sce) has been detected together with the corresponding reduction peak. The formation of Fe (VI)
C.M. Rangel, R.A. Leitão, I.T. Fonseca
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Absorption of CO2 in carbonate bicarbonate buffer solutions in a wetted wall column
Chemical Engineering Science, 1958Resume La vitesse d'absorption de CO2: dans des solutions aqueuses de Na2CO3/NaHCO3 et de K2CO3/KHCO3 a ete mesuree dans une colonne a paroi mouillee. Les conditions physiques et chimiques ont ete choisies telles que la theorie simple de la penetration par diffusion accompagnee d'une reaction irreversible de premier ordre peut etre appliquee.
Ir.R.A.T.O. Nysing, Ir.H. Kramers
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Absorption of carbon dioxide in agitated sodium carbonate‐bicarbonate solutions
Journal of Applied Chemistry, 1953AbstractCoefficients of absorption of carbon dioxide in solutions containing sodium carbonate and bicarbonate have been determined in an agitated tank type of gas absorber. The variation of absorption coefficient with conversion into bicarbonate was studied in detail.
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Stress Corrosion Cracking of Dual-Phase Steel in Carbonate/Bicarbonate Solutions
Corrosion, 1985The stress corrosion cracking (SCO) susceptibility of an experimental, as-rolled, dual-phase steel was investigated in 0.5 M Na2CO3 – 0.5 M NaHCO3 solution at various potentials and temperatures by constant extension rate tensile (CERT) tests. A commercial API X-65 pipeline steel with similar mechanical properties was tested in the same way and the ...
John Stiksma, S. A. Bradford
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Electrochimica Acta, 1997
Abstract Combined voltammetry and potentiostatic current transient techniques have been employed to study the electroreduction process of composite surface layers anodically formed on high purity polycrystalline tin in carbonate-bicarbonate ion containing solutions.
C.A. Gervasi +3 more
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Abstract Combined voltammetry and potentiostatic current transient techniques have been employed to study the electroreduction process of composite surface layers anodically formed on high purity polycrystalline tin in carbonate-bicarbonate ion containing solutions.
C.A. Gervasi +3 more
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Corrosion, 1999
Stress corrosion cracking (SCC) on the external surface of pipelines contributes to the major failure of pipelines. The great majority of SCC is intergranular and occurs in a carbonate-bicarbonate environment. Metallurgical factors affecting SCC are still vague and therefore have been studied.
H. Asahi +4 more
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Stress corrosion cracking (SCC) on the external surface of pipelines contributes to the major failure of pipelines. The great majority of SCC is intergranular and occurs in a carbonate-bicarbonate environment. Metallurgical factors affecting SCC are still vague and therefore have been studied.
H. Asahi +4 more
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The anodic dissolution of SIMFUEL (UO2) in slightly alkaline sodium carbonate/bicarbonate solutions
Electrochimica Acta, 2011Abstract The corrosion of nuclear fuel under waste disposal conditions is likely to be influenced by the bicarbonate/carbonate content of the groundwater since it increases the solubility of the UVI corrosion product, [UO2]2+. As one of the half reactions involved in the corrosion process, the anodic dissolution of SIMFUEL (UO2) has been studied in ...
P.G. Keech +3 more
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Journal of Materials Engineering and Performance, 2021
In this paper, the stress corrosion cracking (SCC) behaviors of X100 pipeline steel are studied in a carbonate/bicarbonate solution with different concentrations of chloride (Cl−) by using slow stress-strain tests, electrochemical measurements, x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM).
Longfei Song +3 more
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In this paper, the stress corrosion cracking (SCC) behaviors of X100 pipeline steel are studied in a carbonate/bicarbonate solution with different concentrations of chloride (Cl−) by using slow stress-strain tests, electrochemical measurements, x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM).
Longfei Song +3 more
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Electrochimica Acta, 1993
Abstract Anodic behavior of iron and Fe-1.82%P was studied in 0.5 M Na 2 CO 3 + 1.0M NaHCO 3 at 75°C with the use of ac impedance and dc methods. In the active and passive regions, anodic currents and interfacial capacitance ( C if ) of the Fe-P alloy were higher than those for iron, and the charge transfer resistance ( R ct ) was lower ...
E. Sikora, A. Sadkowski, J. Flis
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Abstract Anodic behavior of iron and Fe-1.82%P was studied in 0.5 M Na 2 CO 3 + 1.0M NaHCO 3 at 75°C with the use of ac impedance and dc methods. In the active and passive regions, anodic currents and interfacial capacitance ( C if ) of the Fe-P alloy were higher than those for iron, and the charge transfer resistance ( R ct ) was lower ...
E. Sikora, A. Sadkowski, J. Flis
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