An Assessment of the Processes Leading to Pit Nucleation on Iron

Janik‐Czachor, M.

doi:10.1149/1.2127344

Cited by 83 publications

(45 citation statements)

References 61 publications

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“…The higher the I act or the lower the width of the hysteresis loop is, ΔΙ, the greater is the susceptibility of Fe to pitting corrosion. Comparing the aggressiveness of Cl -and Br -in terms of the I act or ΔΙ , the order Cl -> Br -is found, in agreement with the order found from the nonlinear dynamical response obtained under potential-controlled conditions Sazou et al, 2000a), as well as with literature data based on other criteria (Janik-Czachor, 1981;Macdonald, 1992;Strehblow, 1995).…”

Section: Oscillatory Phenomena As a Probe To Study Pitting Corrosion supporting

confidence: 88%

Oscillatory Phenomena as a Probe to Study Pitting Corrosion of Iron in Halide-Containing Sulfuric Acid Solutions

Sazou¹,

Pavlidou²,

Diamantopoulou³

et al. 2012

Pitting Corrosion

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Section: Oscillatory Phenomena As a Probe To Study Pitting Corrosion supporting

confidence: 88%

Oscillatory Phenomena as a Probe to Study Pitting Corrosion of Iron in Halide-Containing Sulfuric Acid Solutions

Sazou¹,

Pavlidou²,

Diamantopoulou³

et al. 2012

Pitting Corrosion

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“…This film retards the corrosion process as it can limit or arrest further metal dissolution by acting as a physical barrier to the corrosion reaction, resulting in a decrease in corrosion rate .Also, the rate of corrosion is controlled by diffusion through the corrosion product layers, i.e., when the thickness of the oxide layer increases the diffusion rate decreases resulting in simultaneous decrease in corrosion rate with time 32 . However, it is expected that, on further increase in immersion time, a sudden increase in corrosion rate is taking place due to breakdown of passive film by the action of chloride ions, due to their breakdown action on the passive film 33 . The chloride ions may be associated with the ability of these anions to adsorb on the passive film (at the bottom of cracks and pores in the oxide film) causing increase in corrosion rate 34 .…”

Section: Fig 1: Micrographs Of Different Studied Materials After Immmentioning

confidence: 99%

Comparative Surface Study of Corrosion Behavior of Carbon Steel with Nickel, Copper and 70/30 Ni-Cu Alloy in Seawater-Part 1

Hamdy¹,

Mohammed²,

Abbas³

et al. 2012

Orientjchem.

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Comparison of corrosion behavior of Ni, Cu and 70/30 Ni-Cu alloy together with that of carbon steel in seawater has been investigated. Characteristics such as morphological changes and composition of corrosion products have been studied comparatively by means of scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and X-Ray diffraction (XRD). It was found that both the protective properties and adherence of the film, formed on the surface depend on the nature of the substrate and the environment composition. Corrosion mechanisms for all the studied materials were suggested based on the surface analyses. The results show that the chloride content is the controlling factor in corrosion of both carbon steel and copper in seawater, while sulphur content is the regulating factor for corrosion of nickel and 70/30 Ni-Cu alloy in seawater.

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“…These phenomena are well known, but their mechanistic explanation can be different, in spite of numerous studies. Various mechanisms, known up to 80s of XX century have been published in several reviews, cf., e.g., [57][58][59]. Later in 1985, Williams et al have presented the stochastic models of pitting corrosion of stainless steels based on the idea of stabilization of individual pits [60].…”

Section: The Pitting Corrosion Of Steel As a Cooperative Processmentioning

confidence: 99%

Cooperative Dynamics of Coupled and Forced Oscillators

Orlik

2012

Self-Organization in Electrochemical Systems II

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The formation of dissipative patterns on electrode surfaces is related to various kinds of spatial couplings that interact with the electrochemical process in a way dependent, among others, on the geometrical arrangement of the electrodes and the operational mode of the electrochemical experiments. A natural development of the concept of individual reaction sites engaged into such couplings is the case of coupled oscillators. It is thus not surprising that the treatment of coupling of the individual oscillators and spatiotemporal phenomena in a single oscillator may have common points. The analysis of such complex systems allows to understand better the general mechanisms underlying the spatiotemporal phenomena, including the coupling that exist between oscillators in living systems, e.g., in the biological cell membranes.The coupling of chemical or electrochemical oscillators can lead to either more complex or simpler oscillatory regimes, in the latter case including even ceasing of the oscillations. A special variant of such coupling can be realized through the external perturbation of a single oscillator or of a set of them.Karantonis and Nakabayashi [1] have analyzed the case of coupling of two limit cycle electrochemical oscillators, described by only two dynamical variables. In this work the diffusive coupling in one dynamical variable is considered which, under appropriate conditions, can lead to dephasing of the oscillators. This particular problem is related to the suggestion by Kuramoto [2] that chemical spatiotemporal chaos might arise where diffusive coupling leads to dephasing. The problem is important since it was shown, in terms of the model approach, that the diffusive coupling of the transmembrane voltage, in the presence of a strong deformation of the phase flow in the vicinity of the limit cycle, can cause the dephasing of oscillators and bursting oscillations [3]. The model of electrochemical M. Orlik, Self-Organization in Electrochemical Systems II, Monographs in Electrochemistry,

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An Assessment of the Processes Leading to Pit Nucleation on Iron

Cited by 83 publications

References 61 publications

Oscillatory Phenomena as a Probe to Study Pitting Corrosion of Iron in Halide-Containing Sulfuric Acid Solutions

Oscillatory Phenomena as a Probe to Study Pitting Corrosion of Iron in Halide-Containing Sulfuric Acid Solutions

Comparative Surface Study of Corrosion Behavior of Carbon Steel with Nickel, Copper and 70/30 Ni-Cu Alloy in Seawater-Part 1

Cooperative Dynamics of Coupled and Forced Oscillators

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