Corrosion inhibition of steel in seawater through surface phosphate formed from oil

Poon, Jeffrey; Madden, David C.; Welbourn, Rebecca J. L.; Allen, Finian J.; Khan, Fahmida; Sonke, Hans; Clarke, Stuart M.

doi:10.1016/j.surfcoat.2021.126970

Cited by 10 publications

(8 citation statements)

References 60 publications

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“…1), with its surface similar to commercial metal alloys. [14], [15] Two SiN chips (one with iron deposition) are assembled and mechanically clamped together, with a 0.5 µm spacer in-between. The liquid thickness is set by the spacer.…”

Section: Methodsmentioning

confidence: 99%

In-situ iron corrosion in brine using TEM

Agrawal

Langford

et al. 2023

MRS Advances

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We present the corrosion of an iron film in brine solution (0.1 NaCl) as measured by liquid TEM.Dissolution of the iron film and nucleation of the corrosion products is captured by imaging. It shows that the nucleation initiates at the metal surface, with preferential growth along the metal grain boundaries. The corrosion product that forms is characterised in-situ as hematite by electron diffraction.

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Section: Methodsmentioning

confidence: 99%

In-situ iron corrosion in brine using TEM

Agrawal

Langford

et al. 2023

MRS Advances

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“…NR has been applied to study oxidation, corrosion and adsorption of corrosion inhibitors on a range of metal surfaces, including Fe, − FeCr alloys and stainless steel, , Ni and Ni alloys, − Co, Cu, − Ti, ,− Zr, − and Al. − For a more comprehensive coverage of the literature, see reviews in refs and .…”

Section: Case Studiesmentioning

confidence: 99%

“…[22][23][24]26,29,30,34,45,50 In most cases, the NR measurements are not complemented by electrochemical methods. Wood et al 22−24 and Poon et al, 26 used PNR, in combination with XRR and other techniques, to study the interaction of candidate corrosion-inhibiting surfactants with oxide-covered Fe films on Si. While it was suggested in 24 that bis(2-ethylhexyl)phosphate was chemisorbed on the surface, it was later concluded that the surfactant reacted with the surface to form a layer of iron(II) phosphate.…”

Section: Nr Investigations Of the Interaction Of Molecules With Metal...mentioning

confidence: 99%

Neutron Reflectivity in Corrosion Research on Metals

Karlsson,

Johansson,

Mazzei

et al. 2024

ACS Mater. Au

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Neutron reflectivity (NR) is potentially a powerful tool for characterizing chemical and morphological changes in thin films and at buried interfaces in corrosion science. While the scope of NR is limited by its inherent demands for low surface roughness and high sample planarity, these drawbacks are compensated for by the unique ability to detect light elements and distinguish between isotopes. Furthermore, the generally weak absorption of neutrons by matter allows the use of bulky sample environments and in situ experiments. In particular, the layer thickness range of 3–100 nm accessible by NR is appropriate for studying air-formed films and passive films, which are crucial for the ability of metallic materials to resist corrosion, as well as for investigating the interaction of metal surfaces with hydrogen and its compounds, e.g., water. Also, NR is suitable for studying early stages of oxide growth on metals at high temperature, including the transition from Cabrera–Mott-type films to Wagner-type growth. Here, we outline key characteristics of NR as applied to the study of corrosion of metals, exemplified by earlier work, and discuss perspectives for future work in the field. The aim of our work is to stimulate the application of the unique capabilities of NR to corrosion science.

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“…Electrochemical or chemical processes are used to turn the covered surface into a coating. The most common processes for forming conversion coatings are phosphatizing, 11 chromating, 12 and anodic oxidation. 13 The phosphate coating is resulted from immersing into or spraying the metal surface with acidic phosphate solutions.…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly Silane-Based Coating for Mitigation of Carbon Steel Corrosion in Marine Environments

2023

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Losses from corrosion contribute roughly 3–5% of the gross domestic product of developed nations, and among the many methods used to avoid corrosion, using silane-based coatings is seen to be of the biggest importance due to their low toxicity and superior adhesive qualities. It is essential to develop an anti-corrosion coating that is efficient, economical, and eco-friendly. The corrosion resistance and durability of various silane-based coatings such as 1,2-bis(triethoxysilyl)ethane (BTSE), bis[3-(triethoxysilyl)propyl]tetrasulfide (TESPT), and vinyltrimethylsilane (VTES) for carbon steel 1018 substrates were investigated in a high-salinity environment (4.5 wt % NaCl). The corrosion resistance performance was evaluated via potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. Results revealed that the TESPT film (pH ≈ 7) has the best corrosion resistance performance on the carbon steel surface in the aggressive chloride environment, that is, 99.6%. The high corrosion resistance of the TESPT film is due to the hydrophobic nature of this silane, which leads to the formation of a stable and dense film. These results were supported by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) analyses.

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Corrosion inhibition of steel in seawater through surface phosphate formed from oil

Cited by 10 publications

References 60 publications

In-situ iron corrosion in brine using TEM

In-situ iron corrosion in brine using TEM

Neutron Reflectivity in Corrosion Research on Metals

Eco-friendly Silane-Based Coating for Mitigation of Carbon Steel Corrosion in Marine Environments

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