Carbon steel corrosion in clay-rich environment

Mendili, Yassine El; Abdelouas, Abdesselam; Chaou, Abdelouahed Ait; Bardeau, Jean‐François; Schlegel, Michel L.

doi:10.1016/j.corsci.2014.07.020

Cited by 32 publications

(10 citation statements)

References 58 publications

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“…It is clear from Fig [47][48][49][50] . The Met and Pro molecules can adsorb on steel surface and form inhibition films to effectively protect it away from the aggressive Cl -ions, and then decrease the dissolution rate of iron in PCMs solution.…”

Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 79%

“…It indicates that the anodic dissolution of steel and cathodic oxygen corrosion reaction are both suppressed by the inhibitors in PCMs solution, but the inhibitory degree of anodic dissolution reaction is higher than the inhibitory degree of cathodic oxygen corrosion reaction. The anodic dissolution reaction of steel in PCMs solution can be accelerated by Cl -ions present in PCMs solution with the pH of 6.5 (near neutral solution) [47][48][49][50] . The Met and Pro molecules can adsorb on steel surface and form inhibition films to effectively protect it away from the aggressive Cl -ions, and then 12 decrease the dissolution rate of iron in PCMs solution.…”

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confidence: 99%

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Inhibition of carbon steel corrosion in phase-change-materials solution by methionine and proline

et al. 2016

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Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 79%

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confidence: 99%

Inhibition of carbon steel corrosion in phase-change-materials solution by methionine and proline

et al. 2016

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“…The literature review shows that many studies dealt with the interaction between soil and carbon steel in the fields of archaeology [28] [29], pipelines [30], and radioactive waste management [24] [31]. These environments (high temperature, anaerobic, compacted soil, etc…) are very different from those of construction.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical studies of steel rebar corrosion in clay: Application to a raw earth concrete

et al. 2020

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Reinforcement feasibility of a new ecological earth concrete was examined. Steel rebar corrosion, when in contact with three different types of clayey soil, was investigated using electrochemical methods, potentiodynamic voltammetry and impedance spectroscopy (EIS).Results have shown that the voltammetry method overestimates the corrosion rate while EIS supplies the most reliable results. Corrosion rate decreased and a steady state was reached after four months of contact. The type of clay does not have a significant influence on the corrosion rate of the steel rebar, and the average value of 3 was considered acceptable for the lifetime of the structure.

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“…External corrosion rate (CR) in buried pipelines remains as a topic of interesting research (Quej-Ake et al , 2017; Quej-Ake et al , 2015; Quej-Ake et al , 2014; Elboujdaini et al , 1994; Orlov, 2008; Benmoussat and Hadjel, 2005; Velázquez et al , 2010; Liu et al , 2012; Charles and Parkins, 1995; Yan et al , 2008; Bradford, 2001; Yan et al , 2008; Mendili et al , 2014; Cole and Marney, 2012; Yan et al , 2014; Liu et al , 2008; Rim-rukeh and Awatefe, 2006; Alamilla et al , 2009). One of them is associated with the generalized corrosion studies for low carbon steel exposed to clay soils (Velázquez et al , 2010); another research is related to the corrosion process for X52 steel exposed to clay–silt soil (a type of soil collected from marshy zones) at a different moisture content (Quej-Ake et al , 2014; Garg et al , 2014) and for representative soil solutions which are considered as neutral solutions (Benmoussat and Hadjel, 2005; Velázquez et al , 2010).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical study on the corrosion rate of X52 steel exposed to different soils

Quej-Aké

Contreras

2018

ACMM

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Purpose The purpose of this work is to study the corrosion rate of X52 pipeline steel exposed to three types of soils collected in Campeche State in México. The electrochemical evaluation for X52 steel exposed to soils ranging from saturated soil until dry conditions was carried out for a period of 21 days. Owing to its versatility to study the steel corrosion process exposed to different types of soils, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and cyclic voltammetry tests were performed. Additionally, optical and electronic microscopy observations of the steel surface were carried out. Design/methodology/approach Electrochemical cell arrangement was described elsewhere (Quej-Ake et al., 2014). Owing to soil being an electrolytic system with high resistivity and impedance, all electrodes were placed as close as possible, and iR-drop compensation was taken into account using two rods of graphite as an auxiliary electrode. In addition, the conductivity of the soil (Rs) obtained from EIS was used to correct the potential of the working electrode according to iR-drop, and an analysis of ohmic drop from the polarization curves was carried out. Findings Saturated conditions of the three soils were initially considered as the most corrosive conditions for X52 steel surface. Finally, 21 days of immersion time was taken into account as the more drastic condition. So, according to results, X52 steel exposed to beach sand was more susceptible to the corrosion process (0.092 mm/year). iR corrected was negligible at low over-potentials region in saturated soils, which is inside the linear region of Tafel or the activation region. In addition, high cathodic peak potential value obtained from cyclic voltammetry for X52 steel exposed to saturated soil may be attributed to hydrogen evolution reaction and neutral pH. Research limitations/implications The paper has implications for research. It bridges the gap between theory and practice. Originality/value Cyclic voltammetry is a really important tool for the electrochemical analysis of the pipeline steel surface exposed to saturated soils, but is not adequate for analysis of steel exposed to dried soils. In addition, the physicochemical results show that fissures, voids and extra-oxygen presence could also affect the electrochemical responses obtained for X52 steel exposed to soils.

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Carbon steel corrosion in clay-rich environment

Cited by 32 publications

References 58 publications

Inhibition of carbon steel corrosion in phase-change-materials solution by methionine and proline

Inhibition of carbon steel corrosion in phase-change-materials solution by methionine and proline

Electrochemical studies of steel rebar corrosion in clay: Application to a raw earth concrete

Electrochemical study on the corrosion rate of X52 steel exposed to different soils

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