Techniques for corrosion monitoring

Yang, Lietai

doi:10.1533/9781845694050

Cited by 49 publications

(66 citation statements)

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“…However, the detection of various 20 analytes in aqueous media is often not feasible at high over- 21 potentials, since these often result in either oxygen or hydrogen 22 evolution on these metal electrodes in aqueous media [4]. In the 23 past, due to the high overpotential towards hydrogen evolution, 24 mercury electrodes were extensively exploited for trace metal 25 analysis, however, its toxicity has promoted alternative research 26 efforts to find replacements using less or non-harmful materials 27 [5].…”

Section: Q2mentioning

confidence: 99%

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Electrochemical detection of cupric ions with boron-doped diamond electrode for marine corrosion monitoring

Nie

Neodo

Wharton

et al. 2016

Electrochimica Acta

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A B S T R A C TCorrosion induced structural failures continue to be a costly problem in many industrial situations, and the development of robust corrosion sensing systems for structural health integrity monitoring is still a demanding challenge. The applicability of corrosion monitoring of copper alloys using a boron-doped diamond electrode (BDD) has been performed based on determination of copper ions within localised corrosion microenvironments. The electrochemical behaviour of copper ions on the BDD electrode surface were first reported in details in 0.60 M NaCl aqueous solution, and the results revealed that the electrochemical processes of copper ions on the BDD electrode proceed as two successive single electron transfer steps producing two well-separated pairs of peaks in cyclic voltammograms in the chloride ion containing electrolyte solutions. Compared with perchlorate and sulphate ions, chloride ions were observed with a significant stabilization effect on copper ions via the formation of Moreover, differential pulse voltammetric results exhibited the BDD electrode is promising for corrosion monitoring of copper alloys with an excellent relationship between peak current and concentration of copper ions without significant interference from the commonly presented metal ions within the simulated marine corrosion environments.

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Section: Q2mentioning

confidence: 99%

“…However, 52 localized corrosion is extremely problematic to effectively detect 53 due to limited access to affected areas, and the lack of robust 54 corrosion sensing systems [23]. electrolyte has not been fully understood on boron-doped Table 1 Most commonly used electrochemical techniques for metallic structure corrosion monitoring [24].…”

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confidence: 99%

Electrochemical detection of cupric ions with boron-doped diamond electrode for marine corrosion monitoring

Nie

Neodo

Wharton

et al. 2016

Electrochimica Acta

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“…It is an essential factor in the design phase of such infrastructures, not only for its implications in structural resistance but also for its importance in economic calculation, as it implies costly maintenance in the phase of exploitation [5,6]. Because of corrosion, metallic buried structures must be regularly inspected, maintained, and occasionally replaced [7,8]. Furthermore, the failure of these structures presents serious risks to human health and the environment [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Arriba-Rodriguez

Balsera

Fernández

et al. 2018

Metals

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Around the world, there are thousands of metal structures completely or partially buried in the soil. The main concern in their design is corrosion. Corrosion is a mechanism that degrades materials and causes structural failures in infrastructures, which can lead to severe effects on the environment and have direct impact on the population health. In addition, corrosion is extremely complex in the underground environment due to the variability of the local conditions. The problem is that there are many methods to its evaluation but none have been clearly established. In order to ensure the useful life of such structures, engineers usually consider an excess thickness that increases the economic cost of manufacturing and does not satisfy the principles of efficiency in the use of resources. In this paper, an extended revision of the existing methods to evaluate corrosion is carried out to optimize the design of buried steel structures according to their service life. Thus, they are classified into two categories depending on the information they provide: qualitative and quantitative methods. As a result, it is concluded that the most exhaustive methodologies for estimating soil corrosion are quantitative methods fed by non-electrochemical data based on experimental studies that measure the mass loss of structures.

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“…Corrosion rate measurements are generally performed by 1) Calculating the mass loss per unit surface area of the corroding specimen and 2) Using potentiostatic measurements [6,7]. Two main techniques are available, Tafel extrapolation and Linear Polarization Resistance, R P .…”

Section: Corrosion Rate Calculationmentioning

confidence: 99%

Effect of Radial Expansion of Cr-Mo Steel Tubes on Their Corrosion Behavior in Sea Water

Seibi¹,

Rostron²,

Elramady³

et al. 2012

MSA

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This paper studies the effect of expansion ratio on the corrosion rate of the expanded tubes exposed to sea water as well as the microstructure changes caused by the expansion of Cr-Mo steel tubes to large permanent deformations. 2.25 Cr-1.0 Mo steel (schedule 40 and schedule 80) tubes were subjected to various expansion ratios of 10%, 15%, 20%, and 25% by pushing conical mandrels through them using a piston. The microstructure was also studied to determine the effect of the expansion on the grain structure of the material. Microscopic examination of the expanded tubes revealed that grains elongate along the direction of the hoop stress and this elongation increases with an increase of expansion ratio. Moreover, it was found that corrosion rate and hardness increase with an increase in expansion ratio.

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Techniques for corrosion monitoring

Cited by 49 publications

References 0 publications

Electrochemical detection of cupric ions with boron-doped diamond electrode for marine corrosion monitoring

Electrochemical detection of cupric ions with boron-doped diamond electrode for marine corrosion monitoring

Methods to Evaluate Corrosion in Buried Steel Structures: A Review

Effect of Radial Expansion of Cr-Mo Steel Tubes on Their Corrosion Behavior in Sea Water

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