Electrochemical Corrosion

Buchanan, R. A.; Stansbury, E.E.

doi:10.1016/b978-1-4377-3455-3.00004-3

Cited by 34 publications

(29 citation statements)

References 2 publications

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“…The extrapolation of the pair of Tafel regions in the curves and the corrosion rates were accurately determined using the Ec-lab corrosion software model 10.40. The condition is that the Tafel region must be linear for at least one decade of current after a potential scan of about ±300 mV, and is taken within 50-100 mV above and below the E corr [50]. The current value at the E corr intersection is then the corrosion current (I corr ), directly called the corrosion current density when the working electrode (WE) is a standard 1 cm 2 surface area.…”

Section: Potentiodynamic Polarizationmentioning

confidence: 99%

“…The current value at the E corr intersection is then the corrosion current (I corr ), directly called the corrosion current density when the working electrode (WE) is a standard 1 cm 2 surface area. Other values of the WE area must be used to divide the measured equilibrium corrosion current to obtain the corrosion current density (I corr ) according to the following equation [50].…”

Section: Potentiodynamic Polarizationmentioning

confidence: 99%

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Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

et al. 2021

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Besides electrochemical corrosion protection, laser shock peening provides extended fatigue life and mechanical properties for metals, as reported in the literature. However, most of the studies were performed under static conditions. The effectiveness of this method under flow conditions and prolonged immersion duration is addressed in this study. Copper discs were peened with Nd: YAG laser in the presence of ~2 mm thickness of water and polyvinyl chloride to absorb the intensity and provide residual stress without surface damage. Electrochemical and hydrodynamic analyses indicate that the peened surface showed higher corrosion resistance in 3.5 % NaCl compared to the unpeened.

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Section: Potentiodynamic Polarizationmentioning

confidence: 99%

Section: Potentiodynamic Polarizationmentioning

confidence: 99%

Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

et al. 2021

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“…Overall, a similar trend is maintained for the corrosion current values in the literature for the various saliva or solutions used, namely with annealing the corrosion protection of the nanotube layers increases. To note that (i) linear polarization measurements/Tafel plots are usually measured when steady-state conditions are achieved at the interface between metal/solution (e.g., the change of the corrosion potential is less than 5 mV in 10 min) [155], and (ii) at least one of the branches has to exhibit linearity on a semilogarithmic scale over at least one decade of current density to allow the extrapolation of the Tafel slope [156][157][158] (see also the Tafel plots in Figure 9c showing linearity only in the cathodic region). For NT structures, the tube diameter and the thickness of the barrier layer are also crucial, significantly affecting their electrochemical corrosion performance [142,145,148,159].…”

Section: Corrosion Resistance Of Anodic Tio 2 Nanotubesmentioning

confidence: 99%

Anodic TiO2 Nanotubes: Tailoring Osteoinduction via Drug Delivery

et al. 2021

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TiO2 nanostructures and more specifically nanotubes have gained significant attention in biomedical applications, due to their controlled nanoscale topography in the sub-100 nm range, high surface area, chemical resistance, and biocompatibility. Here we review the crucial aspects related to morphology and properties of TiO2 nanotubes obtained by electrochemical anodization of titanium for the biomedical field. Following the discussion of TiO2 nanotopographical characterization, the advantages of anodic TiO2 nanotubes will be introduced, such as their high surface area controlled by the morphological parameters (diameter and length), which provides better adsorption/linkage of bioactive molecules. We further discuss the key interactions with bone-related cells including osteoblast and stem cells in in vitro cell culture conditions, thus evaluating the cell response on various nanotubular structures. In addition, the synergistic effects of electrical stimulation on cells for enhancing bone formation combining with the nanoscale environmental cues from nanotopography will be further discussed. The present review also overviews the current state of drug delivery applications using TiO2 nanotubes for increased osseointegration and discusses the advantages, drawbacks, and prospects of drug delivery applications via these anodic TiO2 nanotubes.

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“…where i is current density and ∆E is the corrosion potential difference that is obtained from the open-circuit potential method [29]. Then, combining with the Tafel extrapolation method [97], the corrosion current density i corr is obtained from Tafel constant B and R p,…”

Section: Linear Polarization Resistance and Tafel Polarizationmentioning

confidence: 99%

Research Progress in Corrosion Mechanism of Reinforced Alkali-Activated Concrete Structures

Zhang

Yang

2021

CMD

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In this paper, the recent research progress on the corrosion of reinforced alkali-activated materials (AAMs) concrete structures is reviewed. The corrosion mechanisms induced by carbonation and chloride ingress in AAMs concrete are discussed, from the perspectives of composition, microstructure and pore solution chemistry, in comparison to ordinary Portland cement (OPC) concrete. The steel–alkali-activated concrete interface is a key to investigating corrosion initiation and propagation, which has different physical and chemical characteristics of the steel–concrete interface in OPC concrete. Moreover, the electrochemical process testing methods including half-cell potential and linear polarization resistance are critically discussed with a focus on what could be inherited from the OPC concrete and what criteria are no longer suitable for AAMs concrete due to underestimation in most cases. New data and theories are urgently needed for using AAMs in concrete structures to replace OPC. At the end of this paper, the research gaps and future research needs are summarised for the sake of widespread application of AAMs in concrete structures for sustainable and low-carbon construction.

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Electrochemical Corrosion

Cited by 34 publications

References 2 publications

Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

Laser shock peening (LSP): Electrochemical and hydrodynamic investigation of corrosion protection pre-treatment for a copper surface in 3.5 % NaCl medium

Anodic TiO2 Nanotubes: Tailoring Osteoinduction via Drug Delivery

Research Progress in Corrosion Mechanism of Reinforced Alkali-Activated Concrete Structures

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