An electrochemical study of phase-transitions in rust layers

Stratmann, M.; Bohnenkamp, Konrad; Engell, Hans‐Jürgen

doi:10.1016/0010-938x(83)90024-0

Cited by 289 publications

(121 citation statements)

References 19 publications

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“…A comprehensive discussion of this topic entails, considering the models developed to account for the atmospheric corrosion of steel, including Schikkor's "acid regeneration cycle" [49] , the electrochemical theory of Evans [50 y 51] and its refined version by Stratmann [52][53][54][55][56] .…”

Section: Rust Formation Mechanismsmentioning

confidence: 99%

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Atmospheric corrosion of mild steel

Morcillo¹,

Fuente²,

Díaz³

et al. 2011

REVMETAL

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The atmospheric corrosion of mild steel is an extensive topic that has been studied by many authors in different regions throughout the world. This compilation paper incorporates relevant publications on the subject, in particular about the nature of atmospheric corrosion products, mechanisms of atmospheric corrosion and kinetics of the atmospheric corrosion process, paying special attention to two matters upon which relatively less information has been published: a) the morphology of steel corrosion products and corrosion product layers; and b) long-term atmospheric corrosion (>10 years). KeywordsAtmospheric corrosion; Mild steel; Long-term; Morphology; Review. corrosión atmosférica del acero suave resumenLa corrosión atmosférica del acero suave es un tema de gran amplitud que ha sido tratado por muchos autores en numerosas regiones del mundo. Este artículo de compilación incorpora publicaciones relevantes sobre esta temática, en particular sobre la naturaleza de los productos de corrosión atmosférica, mecanismos y cinética de los procesos de corrosión atmosférica, prestando una atención especial a dos aspectos sobre los que la información publicada ha sido menos abundante: a) morfología de los productos de corrosión del acero y capas de productos de corrosión, y b) corrosión atmosférica a larga duración (> 10 años).

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Section: Rust Formation Mechanismsmentioning

confidence: 99%

“…The metal dissolution rate is high, but the amount of dissolved iron is restricted to the amount of reducible FeOOH in the rust layer [52] .…”

Section: Stratmann's Modelmentioning

confidence: 99%

Atmospheric corrosion of mild steel

Morcillo¹,

Fuente²,

Díaz³

et al. 2011

REVMETAL

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“…Whereas, C-FeOOH is thermodynamically easy to reduce, noting that C-FeOOH is reduced to C-Fe.OH.OH, with this new phase representing an intermediate. 6 The C-Fe.OH.OH intermediate phase comprising Fe 2+ is reoxidized to C-FeOOH during the drying process. During the subsequent non-splash part of the corrosion cycle, the thickness of the electrolyte layer is diminished.…”

Section: Phase Analysis Of the Field Rust Depositmentioning

confidence: 99%

“…[5][6][7][8][9][10][11][12][13][14][15][16][17] Rust layers often form on the surface of steel structures experiencing a corrosion process, and the associated corrosion performance is dependent on a number of factors including rust formation, rust evolution and the inherent properties of the rust layers such as composition and structures. If pitting corrosion of HSLA steel occurs after prolonged exposure in the marine splash zone, as observed in R. Jeffery et al's exposure tests, 4 it can be speculated that the rust layer may contribute to the origins of pitting corrosion.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Performance of High Strength Low Alloy Steel AISI 4135 in the Marine Splash Zone

2017

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The corrosion behavior of high strength low alloy AISI 4135 steel was studied following extended exposure to a Qingdao field environment. When electrochemically active γ-FeOOH was formed in conjunction with easily reducible β-FeOOH, these corrosion products acted to accelerate corrosion attack in the marine splash zone (i.e., steel structure above the water line that is splashed by sea spray). It had also been observed that the pH beneath the rust layer exhibited a minimum during the non-splash part of wet and non-splash corrosion cycling. These acidic conditions contributed significantly to an increase in the rate of localized corrosion, both beneath the rust deposits and within rust cracks and voids within pockets of rust deposits over the steel surface.

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“…[3][4][5][6][7][8] The mechanism of atmospheric corrosion has been discussed on the basis of electrochemical reactions, and electrochemical methods and other techniques were utilized for studying reaction processes in atmospheric corrosion. [9][10][11][12][13] It was considered in these works that the anodic metal dissolution reaction is balanced by the cathodic reaction during corrosion, and the reduction and re-oxidation of corrosion products of ferric and ferrous ions can occur in water. In order to prove these reactions in corrosion, in-situ 57 Fe Mössbauer spectroscopy was employed to analyze the resultant corrosion products.…”

Section: Introductionmentioning

confidence: 99%

<I>In-situ</I> X-ray Diffraction of Corrosion Products Formed on Iron Surfaces

et al. 2005

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In-situ X-ray diffraction measurements by synchrotron radiation and conventional X-ray source have been carried out for identifying constituent species of corrosion products, which were formed on the surface of a pure iron and an iron-5 mass% nickel alloy by reaction with aqueous solutions containing sodium chloride or sodium sulfate. A cell has been prepared for in-situ diffraction measurements of the corrosion products. Diffraction patterns from the corrosion products showed that major constituent species of the corrosion products was -FeOOH, and the fraction of minor species of -FeOOH and Fe 3 O 4 in the corrosion products depended on corrosion conditions, such as wetting and drying processes, anion species in aqueous solutions and nickel in the sample. An oxide scale thermally formed on the iron surface was also found to affect the formation of corrosion products.

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An electrochemical study of phase-transitions in rust layers

Cited by 289 publications

References 19 publications

Atmospheric corrosion of mild steel

Atmospheric corrosion of mild steel

Corrosion Performance of High Strength Low Alloy Steel AISI 4135 in the Marine Splash Zone

<I>In-situ</I> X-ray Diffraction of Corrosion Products Formed on Iron Surfaces

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