Electrochemical evaluation of the corrosion behaviour of API-X100 pipeline steel in aerated bicarbonate solutions

Eliyan, Faysal Fayez; Mahdi, E.; Alfantazi, Akram

doi:10.1016/j.corsci.2012.01.015

Cited by 132 publications

(57 citation statements)

References 47 publications

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“…Oil inhibited the active interfaces more significantly in lower chloridecontaining emulsions. The high-frequency semicircles were substantially depressed followed by inductive loops resulting from the adsorbed oil layers similar to the results reported in [33]. The significance of increased chloride content on decreasing the polarization resistance was exhibited in the low frequency regions.…”

Section: Oil-containing Test Solutionssupporting

confidence: 75%

Electrochemical investigations on the corrosion behavior and corrosion natural inhibition of API-X100 pipeline steel in acetic acid and chloride-containing CO2-saturated media

Eliyan

Alfantazi

2012

J Appl Electrochem

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The purpose of this experimental work was to investigate selected electrochemical aspects of the corrosion behavior of API-X100 in CO 2 -saturated, multivariable-controlled corrosion media. Utilizing potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), the corrosion rates, anodic dissolution, cathodic regimes, and free interfacial interactions were discussed.The tests were performed with respect to the environmental factors of 10, 20, 30, 40, 50, and 60 g L -1 chloride and of 10, 20, 30, 40, 50, and 60 mL L -1 acetic acid at 20 and 90°C in the absence and presence of 10 vol% crude oil. The corrosion rates exhibited a peak value with respect to the chloride content while they increased continuously with the acetic acid content irrespectively from temperature. The corrosion behavior was nearly independent from chloride in the presence of acetic acid and oil demonstrated an effective inhibition in all conditions. EIS results showed an agreement with the polarization findings and indicated adsorption-controlled mechanisms.

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Section: Oil-containing Test Solutionssupporting

confidence: 75%

Electrochemical investigations on the corrosion behavior and corrosion natural inhibition of API-X100 pipeline steel in acetic acid and chloride-containing CO2-saturated media

Eliyan

Alfantazi

2012

J Appl Electrochem

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“…They showed that both bicarbonate and chloride influence the cathodic and the anodic reactions, respectively, as shown inFigure 2-8. Anodic peaks were observed in Figure 2-6a, similar to what was reported by Thomas, Nurse, and Walker (1970 Sourced from: (Eliyan, et al, 2012) Sourced from: (Eliyan, et al, 2012) pH It is well established that pH affects the concentration of species in solution. As pH increases, bicarbonate will dissociate to carbonate ion which combines with ferrous ions forming FeCO 3 .…”

Section: Bicarbonate-carbonate Concentrationsupporting

confidence: 72%

“…For example, Eliyan et al (Eliyan, et al, 2012) investigated the corrosion behaviour of API-X100 pipeline steel in aerated bicarbonate brine solution in the absence of CO 2 under static conditions. Tan (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM)…”

Section: 1mentioning

confidence: 99%

“…However, passivation is expected to take place in a concentrated sodium carbonate at pH >11, as analysed by Fang et al (Fang et al, 2003) from the potential pH diagram developed by Parkins and Zhou (Parkins & Zhou, 1997). Eliyan, et al (2012) evaluated the corrosion of API-X100 pipeline steel in aerated bicarbonate solution, in static solution, as well as in chloride-free and chloride-containing conditions at temperature ranges of 20-60℃. They showed that both bicarbonate and chloride influence the cathodic and the anodic reactions, respectively, as shown inFigure 2-8.…”

Section: Bicarbonate-carbonate Concentrationmentioning

confidence: 99%

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Flow-Assisted Corrosion in Coal Seam Gas Infrastructure

Eyu¹

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“…Figure 5 showed the microstructure of base metal by optical microscope. As could be seen, the material is very small in grains and the bainite and acicular ferrite in references [16] was not clear. Because of this, high resolution SEM imaging was used.…”

Section: Resultsmentioning

confidence: 99%

Effect of Localized Coating Damage on Stress Corrosion Cracking Resistance of API 5L Grade B Steel

Malekinejad¹

2017

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Abstract:In this research slow strain rate testing (SSRT), scanning electron microscopy (SEM), hardness measurement, metallography and optical microscopy were used to investigate the effect of localized coating damage on stress corrosion cracking (SCC) resistance of API 5L Grade B steel. According to the results, by increasing the damaged coating surface area, resistance to SCC increased. This phenomenon had 2 reasons. Firstly, by reduction of damaged surface area of coating, the ratio of anode surface to cathode surface reduced and consequently the corrosion reduced. Other reason was reduction in toughness by reducing the area of damaged surface of coating which resulted in failure at lower stresses.

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Electrochemical evaluation of the corrosion behaviour of API-X100 pipeline steel in aerated bicarbonate solutions

Cited by 132 publications

References 47 publications

Electrochemical investigations on the corrosion behavior and corrosion natural inhibition of API-X100 pipeline steel in acetic acid and chloride-containing CO2-saturated media

Electrochemical investigations on the corrosion behavior and corrosion natural inhibition of API-X100 pipeline steel in acetic acid and chloride-containing CO2-saturated media

Flow-Assisted Corrosion in Coal Seam Gas Infrastructure

Effect of Localized Coating Damage on Stress Corrosion Cracking Resistance of API 5L Grade B Steel

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