EIS and XPS study of the corrosion of carbon steel in inhibited natural seawater

Qiu, J. H.; Chua, Puay Huat

doi:10.1002/(sici)1096-9918(199908)28:1<119::aid-sia631>3.0.co;2-t

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…This has for example been demonstrated on carbon steel exposed to sea-water. 96 A 3dimensional structure of a lm was studied. Since an iron peak was absent at the spectrum, it was suggested that substrate was fully covered with corrosion products.…”

Section: Conventional Characterization Techniquesmentioning

confidence: 99%

Carbon steel corrosion: a review of key surface properties and characterization methods

2017

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Section: Conventional Characterization Techniquesmentioning

confidence: 99%

Carbon steel corrosion: a review of key surface properties and characterization methods

2017

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“…Whilst these certainly have great advantages (for example, electrochemical methods often allow a simple way of quantifying the corrosion of each system), they are limited in the extent to which they can provide fundamental structural information about the corroding interface. Techniques such as X-ray photoelectron spectroscopy (XPS) 38,39 have been used to better understand the surface chemistry of corroding surfaces, and whilst these are mainly ex situ, the increasing popularity of new near-ambient XPS techniques makes this a promising tool for future study in this area.…”

Section: Introductionmentioning

confidence: 99%

An X-ray and Neutron Reflectometry Study of Iron Corrosion in Seawater

Wood

Welbourn

et al. 2018

Langmuir

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The corrosive breakdown of thin iron films supported on silicon substrates under a number of conditions is presented-in particular to understand better how iron, and hence ferritic steel, behaves in a salty water environment. A combination of X-ray and neutron reflectometry was used to monitor the structures of both metal and oxide surface layers and also organic corrosion inhibitors adsorbed at the iron/aqueous interface. A range of behavior in seawater was observed, including complete dissolution and void formation under the metal surface. Importantly, two simple treatments-UV/ozone or soaking in ultrapure water-were found to significantly protect the iron surface for considerable lengths of time, although evidence of pitting corrosion began after around 10 days. The underlying causes of the efficacies of these treatments were further investigated using X-ray photoelectron spectroscopy. In addition, three potential corrosion inhibitors were investigated: (i) dodecyltrimethylammonium bromide (DTAB) demonstrated no ability to protect the surface; (ii) sodium dodecyl sulfate (SDS) appeared to accelerate corrosion; and (iii) bis(2-ethylhexyl)phosphate showed an impressive level of protection (the neutron reflectometry results indicated a thick diffuse layer of surfactant of 23% surface coverage). These findings have been interpreted in terms of preferential inhibitor adsorption at cathodic and anodic surface sites (depending on the nature of the inhibitor).

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“…The experiments were carried out using Biologic SP-150 electrochemical workstation against open circuit potential. The EIS data were then fitted and analysed using the EC-lab software [14,[16][17][18]].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Preparation of Co–Gr Nanocomposites and Analysis of Their Tribological and Corrosion Characteristics

Raghav¹,

Balaji²,

Muthukrishnan³

et al. 2018

Metallofiz. Noveishie Tekhnol.

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This work summarizes the tribological and corrosion behaviour of Co-Gr nanocomposites. The Co-Gr nanocomposites are synthesized using highenergy ball mill and compacted into cylindrical pellets by hydraulic pressing. The composites are characterized using SEM, EDAX, and AFM. The dry sliding wear results reveal that the wear resistance increases with increase in the percentage of graphite (Gr). The corrosion characteristics of the Co-Gr nanocomposites are examined using immersion and electrochemical methods. The electrochemical polarization results reveal the increase in corrosion resistant of the Co-25Gr nanocomposites (E corr = −0.416 V vs Ag/AgCl) to more positive side than pure Co (−0.443 V). Electrochemical impedance spectroscopy analysis results also confirmed Co-25Gr nanocomposite has higher resistance value (100 Ω). The results of the weight loss method also authenticate increase in corrosion resistance of Co-25Gr nanocomposite.

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EIS and XPS study of the corrosion of carbon steel in inhibited natural seawater

Cited by 7 publications

References 6 publications

Carbon steel corrosion: a review of key surface properties and characterization methods

Carbon steel corrosion: a review of key surface properties and characterization methods

An X-ray and Neutron Reflectometry Study of Iron Corrosion in Seawater

Preparation of Co–Gr Nanocomposites and Analysis of Their Tribological and Corrosion Characteristics

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