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Relevant bibliographies by topics / Electrochemical corrosion

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Academic literature on the topic 'Electrochemical corrosion'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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Journal articles on the topic "Electrochemical corrosion"

1

Yu, Zhu Huan, Jun Feng Qiang, and Hui Lu Li. "Electrochemical Corrosion Behavior of Different Graphite Shapes Cast Irons in Acidic Solution." Advanced Materials Research 906 (April 2014): 275–82. http://dx.doi.org/10.4028/www.scientific.net/amr.906.275.

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The effect of graphite shapes on the electrochemical corrosion behavior of cast iron was studied by means of weight loss tests, electrochemical measurements and electron microscopy. It was found that the electrochemical corrosion behavior of graphite is significantly different from one other, and the corrosive potential difference between carbide ad the matrix is the main driving force of the different phase corrosions. Among them, the center A type and edge D type graphite exhibited the highest corrosion resistance. The corrosion of white iron is worst, because there are so many type carbides in white iron and so there is an obvious tendency to produce micro-cell in white iron.

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Sun, Qi Lei, Li Zhang, Jie Dong, and Lu Hua He. "Study on Electrochemical Behavior of Prestressed Reinforcement in Simulated Concrete Solution." Applied Mechanics and Materials 357-360 (August 2013): 917–20. http://dx.doi.org/10.4028/www.scientific.net/amm.357-360.917.

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Using electrochemical impedance spectroscop (EIS) and polarization curve technique, the electrochemical behavior of prestressed reinforcement under different stress levels was studied in simulated concrete solution. The results show that: As the stress increasing, the impedance spectroscopy changes significantly, the entire impedance spectroscopy shows an elongated semi-circular deformation, high-frequency capacitance arc radius corrosion decreases with the corrosion progress, in other words, the reaction resistance decreases, the corrosion rate of the sample increases. And when the galvanized steel is in 1064MPa stresss condition, corrosion current density reaches the maximum, is 9 times larger than that of none stress corrosions condition. Under the combined effects of the external stress and corrosive media, dislocation can be emitted, value-added and moves. When it reached a critical state, it would lead to the crack nucleation of Stress corrosion cracking (SCC).

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Nagata, Hikaru, Masa Ono, Yasuyuki Miyazawa, Yuji Hayashi, and Yoshio Bizen. "Corrosion Resistance Evaluation of a Stainless-Steel Brazed Joint in HCl Solution." Materials Science Forum 1016 (January 2021): 997–1002. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.997.

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To clarify the effect of the acid solution type on corrosion resistance, the corrosion behavior of stainless steel brazed joints in HCl aqueous solution was evaluated through electrochemical measurements. Anodic polarization curves of a ferritic stainless-steel base metal, Ni-based brazing filler metals, and a brazed joint were recorded. In addition, in situ observations were conducted to observe the corrosion behavior of each structure of the brazed joint. Corrosion potentials of the brazing filler metal were lower than that of the base metal. In situ observations of the brazed joint revealed the order of corrosion in aqueous hydrochloric acid. According to the electrochemical measurements, under an actual corrosive environment, the brazing filler metal can function as an anode and selectively corrode. In addition, the anodic polarization curve of the brazed joint showed values between those of the polarization curves of the brazing filler metal and the base metal, indicating that the corrosion resistance could be electrochemically evaluated in HCl aqueous solution.

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Pei, Feng, Jing Fu, Fa Yuan Wu, Lei Jing Wang, Xiao Lei Liu, Zhao Hui Yin, and Zhi Ping Zhu. "Electrochemical Evaluation Method for Soil Corrosion Properties in Grid Substation." Applied Mechanics and Materials 295-298 (February 2013): 811–14. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.811.

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Soil corrosion is the main reason of corrosion failure for substation grounding grids. To explore electrochemical evaluation method for soil corrosion of substation grounding grids would effectively ensure the safe operation of power grids. This paper discussed the main several kinds of soil corrosive electrochemical research methods and application. These methods played an important role on researching soil corrosion mechanism, soil corrosivity and corrosion behavior.

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Yan, Rui, Hang Wu, S. K. Yu, Shi Ning Ma, and Bin Shi Xu. "Application of EIS and SEM to Study the Corrosion Behaviors of Organic Coatings/Substrate System." Key Engineering Materials 373-374 (March 2008): 556–59. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.556.

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Electrochemical corrosion behaviors of two common-used ship coatings——epoxy aluminum coating, chloride rubber iron red coating and their composite coatings immersed in 3.5%NaCl solution were investigated using electrochemical impedance spectroscopy combined with open circuit potential measurements and SEM micrograph analysis. Potential-time result indicates that the free corrosion potential of these three coatings with immersion time are more positive than that of metal substrate, which can serve as barrier layer to protect metal substrate from corrosion. During the course of immersion, increasingly negative shift potentials with time reveal the growth of electrochemical area of anode and corrosion takes place continuously. EIS shows that corrosive species can penetrate into coatings and reach the coating/substrate interface promptly, causing the decrease of its shielding role and the beginning of electrochemical corrosion. SEM micrographs suggest that coatings were compact and continuous compared with obviously coarse and loose after corrosion, indicating the penetration of corrosive species destroys cross linkage of coatings. Composite coatings present better protection performance, displaying the effect of “1+1>2” remarkably.

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Rauf, A., and E. Mahdi. "Comparison Between Electrochemical Noise and Electrochemical Frequency Modulation Measurements during Pitting Corrosion." Journal of New Materials for Electrochemical Systems 15, no. 2 (February 2, 2012): 107–12. http://dx.doi.org/10.14447/jnmes.v15i2.79.

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The electrochemical noise (EN) and electrochemical frequency modulation (EFM) techniques have been compared for their use to detect pitting corrosion. To do this, experiments on different corroding systems showing passivation and pitting corrosion were carried out. These corroding systems were: (1) Aluminum in borate buffer solution with and without chlorides (pitting corrosion + passivation behavior), (2) AISI 304SS in 0.3 wt.% FeCl3 solution and 6 wt.% FeCl3 solution at room temperature (passivation behavior + pitting and/or crevice corrosion), and (3) AISI 304SS in 6 wt.% FeCl3 at elevated temperature of 57 °C (pitting corrosion). Both EN and EFM were measured on-line meanwhile changing the corrosive environment by adding chlorides or by increasing the temperature. A potential perturbation composed of two sine waves is applied with the help of EFM to get current response at various frequencies. As the corrosion process is nonlinear in nature, the ac-response contains components at harmonic and intermodulation frequencies. Analysis of current components at different frequencies yields the information about the corrosion behavior under investigation. EFM may be considered to detect pitting initiation and its further development due to the results obtained by measuring the so-called "causality factors", which are the ratio of the current components in the ac-response.

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Hernández, Y., O. Troconis de Rincón, A. Torres, S. Delgado, J. Rodríguez, and O. Morón. "Relación entre la velocidad de corrosión de la armadura y el ancho de fisuras en vigas de concreto armado expuestas a ambientes que simulan el medio marino." Revista ALCONPAT 6, no. 3 (September 30, 2016): 272–83. http://dx.doi.org/10.21041/ra.v6i3.152.

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Relación entre la velocidad de corrosión de la armadura y el ancho de fisuras en vigas de concreto armado expuestas a ambientes que simulan el medio marino RESUMENEsta investigación presenta una relación empírica entre la velocidad de corrosión de la armadura y la velocidad de ensanchamiento de fisuras por corrosión del recubrimiento de concreto en vigas, con o sin aplicación de carga. Se evaluaron vigas de concreto armado, expuestas a un proceso de corrosión natural mediante el rociado con solución salina al 3,5 %p/p de NaCl, para acelerar el proceso corrosivo de la armadura, mediante ensayos electroquímicos. El ancho de fisuras se evaluó mensualmente para estimar la relación existente entre éste y la pérdida de sección de la armadura. Los resultados demuestran que existe una relación directa entre la propagación del ancho de fisuras y la velocidad de corrosión, observando fisuras de mayor ancho en vigas cargadas.Palabras clave: corrosion; concreto armado; vigas cargadas; ancho de fisuras. Reinforcement corrosion rate and crack width relationship in concrete beams exposed to simulated marine environment ABSTRACTThis investigation presents an empirical correlation between the rebar corrosion rate and the corrosion-induced crack width propagation rate produced on beam's concrete cover, with or without load application to these beams. Reinforced concrete beams were evaluated, exposed to a natural corrosion process by spraying with 3.5 %w/w NaCl solution, to accelerate the rebar corrosion process, was performed with electrochemical tests. The beams corrosion-cracking evaluation was performed once every month, to determine the relation between crack width and the rebar corrosion loss. The results showed a direct relation between crack width propagation and rebar corrosion rate, showing wider cracks in the loaded beams.Keywords: corrosion; reinforced concrete; loaded beams; crack widths. Relação entre a velocidade de corrosão da armadura e a largura das fissuras em vigas de concreto armado expostas a ambientes que simulam o ambiente marinho RESUMOEsta pesquisa apresenta uma relação empírica entre a taxa de corrosão da armadura e a abertura de fissuras por efeito da corrosão da armadura em vigas de concreto, com ou sem aplicação de carga. Foram avaliadas vigas de concreto armado, expostas a um processo de corrosão natural por pulverização com solução salina a concentração de 3,5% de NaCl, para acelerar o processo de corrosão da armadura, mediante ensaios eletroquímicos. A abertura das fissuras foi avaliada mensalmente para estimar a relação entre ela e a perda de seção da armadura. Os resultados mostram que existe uma relação direta entre a propagação da abertura da fissura e a taxa de corrosão, observando a ocorrência de fissuras de maior abertura nas vigas sob carga.Palavras-chave: corrosão; vigas de concreto armado sob carga; abertura de fissuras.

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Yan, Rui, Ting Liang, Hong Chun Ren, Jin Gu, and Zhuang Zhou Ji. "Study on Corrosion Behaviors of Epoxy Aluminum Coating Immersed in 3.5%NaCl Solution." Advanced Materials Research 912-914 (April 2014): 338–41. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.338.

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Electrochemical corrosion behavior of epoxy aluminum coating immersed in 3.5%NaCl solution was investigated using electrochemical impedance spectroscopy (EIS). SEM was also used to analyze the surface images of coating, and the failure mechanism was discussed as well. The experimental results showed that corrosive species can penetrate into coatings and reach the coating/substrate interface promptly, causing the decrease of electro-resistance and the beginning of electrochemical corrosion at the coatings/metal interface. The coating was compact and continuous at beginning, while the blisters and cavities appeared after corrosion, which were formed osmotic pressure created by corrosion species penetration.

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Yang, Hai Jiao, Sheng Tao Zhang, and Lei Zhang. "Corrosion Behavior of Copper in Halide Solutions." Applied Mechanics and Materials 189 (July 2012): 36–39. http://dx.doi.org/10.4028/www.scientific.net/amm.189.36.

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The corrosion behavior of copper in halide solutions was investigated by cyclic voltammetry, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). On this basis, the mechanism of electrochemical corrosion behavior of Cu in halide solutions has been analyzed. The study explores the corrosive effect of the halide ions on copper materials and provides a theoretical basis for the inhibition of halide ions on the corrosion of copper materials.

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Pardo, A., S. Feliu, M. C. Merino, R. Arrabal, and E. Matykina. "Electrochemical Estimation of the Corrosion Rate of Magnesium/Aluminium Alloys." International Journal of Corrosion 2010 (2010): 1–8. http://dx.doi.org/10.1155/2010/953850.

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The corrosion rate of AZ31, AZ80, and AZ91D magnesium/aluminium alloys immersed in 3.5 wt.% NaCl was determined comparing gravimetric and electrochemical measurements. The findings revealed that, for all investigated materials, a fraction of the metallic surface exposed to the corrosive medium did not reveal a normal electrochemical response to the applied signal. This may be associated with phenomena such as partial disintegration of specimens into fine metallic particles, electrochemical formation of ions, and/or anomalous chemical attack occurring simultaneously with the normal electrochemical corrosion attack. The abnormal electrochemical behaviour was more evident for lower amounts of aluminium in the bulk composition of the investigated materials. Thus, the electrochemical estimates of pure Mg and the AZ31 alloy were not reliable and tended to underestimate corrosion losses.

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Dissertations / Theses on the topic "Electrochemical corrosion"

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Kumaraguru, Murali. "Electrochemical studies related to automotive corrosion." Thesis, University of Manchester, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488117.

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Peggs, Lee James. "Electrochemical studies of iron corrosion inhibitors." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285364.

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Lowe, Alexander M. "Estimation of electrochemical noise impedance and corrosion rates from electrochemical noise measurements." Thesis, Curtin University, 2002. http://hdl.handle.net/20.500.11937/209.

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Electrochemical noise refers to the spontaneous fluctuations in potential and current that can be observed on a corroding metal. The use of electrochemical noise for obtaining information on the corrosion process generates much interest in research fields. One important application is the measurement of corrosion rate. This can be achieved using the electrochemical noise of a pair of electrically coupled corroding metals to obtain an estimate of electrochemical impedance - an abstract quantity that reflects various aspects of the corrosion process.There are a number of problems associated with estimation of impedance information from the electrochemical noise data, particularly regarding data pre-treatment, accuracy and precision. In addition, the present methods are incomplete: current literature does not offer information regarding the phase of the impedance; and assumptions regarding symmetry of an electrode pair cannot be tested without additional measurements.The thesis addresses the above mentioned problems. Specifically,analysis of the impedance estimation process is given to determine how precision can be affected by various factors;a novel signal processing technique is described that is shown to yield a local optimum precision;the application of the proposed signal processing to time varying systems is demonstrated by use of a time varying, frequency dependent impedance estimate;a technique for recovering phase information, given certain conditions, is suggested so that Nyquist impedance diagrams can be constructed; anda technique for testing the symmetry of a coupled pair of corroding metals is described.An integral part of electrochemical noise analysis is the software used for numerical computation. The Matlab package from MathWorks inc. provides an extensible platform for electrochemical noise analysis. Matlab code is provided in Appendix A to implement much of the theory discussed in the thesis.Impedance analysis and many other electrochemical corrosion monitoring techniques are primarily used for uniform corrosion, where the corrosion patterns occur uniformly over the exposed surface. In order to map localised corrosion, where the corrosion is typically concentrated within a small area, a wire beam electrode can be used. A wire beam electrode is a surface that is divided into a matrix of mini-electrodes so that the corrosion rate at different points can be monitored. However, manual connection of each mini-electrode to the measurement device can prove cumbersome. The final chapter of this thesis describes the design and testing of specialised multiplexing hardware to automate the process.In general, the thesis shows that by careful conditioning of the electrochemical noise prior to analysis, many of the problems with the technique of impedance estimation from the electrochemical noise data can be overcome. It is shown that the electrochemical noise impedance estimation can be extended to encompass a time varying, frequency dependent quantity for studying dynamic systems; that phase information can be recovered from electrochemical noise for the purpose of constructing Nyquist impedance diagrams; and that asymmetric electrodes can be detected without requiring additional measurements.

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Lowe, Alexander M. "Estimation of electrochemical noise impedance and corrosion rates from electrochemical noise measurements." Curtin University of Technology, School of Electrical and Computer Engineering, 2002. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=12723.

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Electrochemical noise refers to the spontaneous fluctuations in potential and current that can be observed on a corroding metal. The use of electrochemical noise for obtaining information on the corrosion process generates much interest in research fields. One important application is the measurement of corrosion rate. This can be achieved using the electrochemical noise of a pair of electrically coupled corroding metals to obtain an estimate of electrochemical impedance - an abstract quantity that reflects various aspects of the corrosion process.There are a number of problems associated with estimation of impedance information from the electrochemical noise data, particularly regarding data pre-treatment, accuracy and precision. In addition, the present methods are incomplete: current literature does not offer information regarding the phase of the impedance; and assumptions regarding symmetry of an electrode pair cannot be tested without additional measurements.The thesis addresses the above mentioned problems. Specifically,analysis of the impedance estimation process is given to determine how precision can be affected by various factors;a novel signal processing technique is described that is shown to yield a local optimum precision;the application of the proposed signal processing to time varying systems is demonstrated by use of a time varying, frequency dependent impedance estimate;a technique for recovering phase information, given certain conditions, is suggested so that Nyquist impedance diagrams can be constructed; anda technique for testing the symmetry of a coupled pair of corroding metals is described.An integral part of electrochemical noise analysis is the software used for numerical computation. The Matlab package from MathWorks inc. provides an extensible platform for electrochemical noise analysis. Matlab code is provided in Appendix A to implement ++
much of the theory discussed in the thesis.Impedance analysis and many other electrochemical corrosion monitoring techniques are primarily used for uniform corrosion, where the corrosion patterns occur uniformly over the exposed surface. In order to map localised corrosion, where the corrosion is typically concentrated within a small area, a wire beam electrode can be used. A wire beam electrode is a surface that is divided into a matrix of mini-electrodes so that the corrosion rate at different points can be monitored. However, manual connection of each mini-electrode to the measurement device can prove cumbersome. The final chapter of this thesis describes the design and testing of specialised multiplexing hardware to automate the process.In general, the thesis shows that by careful conditioning of the electrochemical noise prior to analysis, many of the problems with the technique of impedance estimation from the electrochemical noise data can be overcome. It is shown that the electrochemical noise impedance estimation can be extended to encompass a time varying, frequency dependent quantity for studying dynamic systems; that phase information can be recovered from electrochemical noise for the purpose of constructing Nyquist impedance diagrams; and that asymmetric electrodes can be detected without requiring additional measurements.

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Tan, Yong-jun. "Electrochemical studies on carbon dioxide corrosion and its inhibition." Thesis, Curtin University, 1996. http://hdl.handle.net/20.500.11937/359.

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This thesis mainly concerns the application of electrochemical impedance spectroscopy (EIS) and electrochemical noise analysis (ENA) to the study of CO(subscript)2 corrosion of mild steel and its inhibition. The primary focus is on the use of EIS and ENA to monitor inhibitor film performance and to evaluate inhibitor film persistency.EIS was shown to be a suitable technique to study CO(subscript)2 corrosion product scale, and inhibitor films. The formation and deterioration of protective scales and inhibitor films is found to be accompanied by characteristic spectral changes and a rapid change in electrode impedance. EIS data were used to calculate corrosion related parameters such as the resistances and capacitances of inhibitor layers, and the charge transfer resistance and double layer capacitance. These parameters were used to analyse inhibitor mechanisms, determine corrosion rates and the persistence of inhibitor films.ENA is also a suitable technique to monitor the formation and deterioration of inhibitor films. It has the advantage of being able to monitor rapid processes which occur within one second. Several technical and theoretical developments were made in this thesis including the development of a new method of instantaneous corrosion rate measurement to study fast corrosion processes (the continuous noise resistance calculation method). Experimentally, the noise resistance was confirmed to be similar to linear polarisation resistance in the systems studies. The theoretical background and the advantages and disadvantages of the ENA technique are also discussed.Corrosion product scales formed under different conditions were investigated using EIS and surface analysis techniques. Temperature, pressure and exposure time were confirmed to be the important factors influencing the degree of protection given by the scale. The morphology of corrosion scales showed an obvious correlation to their protective ability. Electron microscopy revealed two types of crystal structures on corroded steel coupons. The smaller crystals associated with one of these structures was found to contribute most to corrosion protection.Several typical CO(subscript)2 corrosion inhibitors, including an imidazoline and a quaternised amine, were studied by EIS. A multi-layer model was employed to explain the EIS characteristics and self-repairing ability of imidazoline films. A quaternised amine film is most probably a physically or electrostatically adsorbed molecular layer which forms rapidly and desorbs easily.The deterioration of films, formed by commercial batch treatment inhibitors, was found to occur in three stages which were indicated or characterised by Bode phase-angle plots. A method to determine inhibitor film persistency was developed. This method is based on determining the three stages of inhibitor film deterioration, and the continuous measurement of corrosion rate, which is accessible at the second and third stages of film deterioration.

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Dominguez, Olivo Juan M. "Electrochemical Model of Carbon Dioxide Corrosion in the Presence of Organic Corrosion Inhibitors." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1577092234789695.

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Jenkins, Andrew Tobias Aveling. "Electrochemical studies of coating degradation." Thesis, University of Newcastle Upon Tyne, 1995. http://hdl.handle.net/10443/967.

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The polymer coatings considered in this thesis work principally by creating a barrier, in order to prevent a corroding medium such as water and / or oxygen from contacting the surface of the underlying metal. Such coatings are subject to attack from the environment in which they are placed. This attack can lead to failure of the coating and corrosion of the underlying metal. In this thesis, three principle means of coating degradation, leading to subsequent corrosion of the substrate have been considered: Mechanical damage of the coating, the effect of ultra-violet light weathering and filiform corrosion. Electrochemical measurements have been made in order to attempt to quantify both the degree of coating breakdown and the extent of corrosion of the substrate. The principle method for measuring coating breakdown and substrate corrosion utilised in the work for this thesis was Electrochemical Impedance Spectroscopy (EIS). EIS, in principle, allows both changes in coating porosity resulting from coating breakdown, and the extent of corrosion of the substrate to be measured. The extent of delamination under polymer coatings on defects of different sizes and on different substrates has been measured. The effect of ultra-violet light weathering of polymer coatings was measured using EIS and correlated with measurements of light reflection of the coating. Filiform corrosion was induced on two different substrates, coated with various coatings. The effect of substrate and coating on filiform corrosion growth rate and mechanism has been considered.

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Wang, Hansheng. "Electrochemical investigation of "green" film-forming corrosion inhibitors :." Thesis, KTH, Skolan för kemivetenskap (CHE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-40888.

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In this work, a comparative electrochemical study has been performed to evaluate corrosion inhibition property of several film-forming corrosion inhibitors provide by Akzo Nobel on carbon steel in a chloride solution. For carbon steel exposed to 1 M NaCl solution with and without added inhibitor, electrochemical measurements including electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR) at different exposure time intervals, and potentiodynamic polarization at the termination of the exposure, have been performed to investigate the film forming process and to evaluate corrosion inhibition efficiency of the inhibitors, as well as its evolution with time. The corrosion resistance data obtained from the EIS and LPR measurements are in good agreement. The results indicate different inhibition properties of the inhibitors tested. The inhibition effect of SSF CI-1 is negligible in the first hour of exposure, but it increases steadily with time for 1 day, and then remains the same level during the exposure up to one week. SSF CI-2 exhibits a good inhibition effect in the first hour, but the effect decreases with time to a low level after 8 hours, and then increases again with prolonged exposure. SSF CI-4 shows a low inhibition effect during the first day, and then increases to a maximum level after three days’ exposure. For SSF CI-5 and SSF CI-6, the inhibition effect within 8 hours is relative low but higher than that of SSF CI-4, and the effect increases with time during prolonged exposure. The SSF CI-5 seems to be better than SSF CI-6 because of a more stable inhibition effect. The EIS results indicate that most of the inhibitors form a resistive surface film on carbon steel, which becomes more resistive and protective after several days’ of exposure. However, in the initial stage of exposure, the SSF CI-6 does not show an effect of formation of a resistive film on the surface. The potentiodynamic polarization measurements suggest that, SSF CI-1 and SSF CI-2 are anodic type inhibitor, SSF CI-4 is cathodic type inhibitor, and SSF CI-5 and SSF CI-6 are mix type inhibitor. Moreover, the inhibitors tested show a similar corrosion inhibition effect as mussel adhesive protein (MAP) at the low dosage level.

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Treeman, Nicole M. "Electrochemical study of corrosion phenomena in zirconium alloys." Thesis, Cambridge, Massachusetts, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/10945/37785.

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CIVINS
Shadow corrosion of zirconium alloy fuel cladding in BWR environments, the phenomenon in which accelerated corrosion is experienced when the cladding surface is in close proximity to other metals, has become a potential life-limiting issue for BWR fuel. Recent results from experimentation at MIT, Halden and Studvik suggest that a galvanic coupling drives the phenomenon between the cladding and the adjacent material. However, the actual processes involved are not understood. One key parameter that would help in the understanding of the phenonenon would be a measurement of the actual corrosion current between fuel cladding and adjacent materials in the actual in-reactor environment. The limitations placed on the burn-up of uranium oxide fuel corelates to the amount of corrosion seen through a directly measurable oxide thickness on the waterside of the zirconium alloy cladding. This oxide corrosion product directly correlates to distance from structure components, leading the effect commonly referred to as shadow corrosion. In recent experiments, Studvik determined that there are large ECP differences associated with Inconel and zirconium alloys that correlate to increased galvanic current density when the materials are coupled. In this thesis research, four electrode pairs wre used to measure galvanic cirrent densities in the irradiation environment:Pt-Pt, Zircalloy (Zr-2), Inconel (X-750)-Pt, and Zr-2-X-750. To determine the changes in the coolant water conductivity dus to the presence of radiolysis products, electrochemical potential mesurements of Pt-Pt coupled electrodes were analyzed. Finally, attempts to characterize the observed oxide behavior using measurement from Electrochemical Impedance Spectroscopy (EIS), also known as Alternating Current Impedance, were conducted. Through the measurements taken, analysis of the mechanisms potentially causing the shadow corrosion phenomenon was conducted. The results of the observations included: Measurement of increased conductivity of coolant water correlating to increases in reactor power, measurement of increased galvanic current measurements correlating to increases in reactor power.

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Kear, Gareth. "Electrochemical corrosion of marine alloys under flowing conditions." Thesis, University of Portsmouth, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369433.

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Books on the topic "Electrochemical corrosion"

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1930-, Buchanan R. A., ed. Fundamentals of electrochemical corrosion. Materials Park, OH: ASM International, 2000.

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Pourbaix, Marcel. Lectures on electrochemical corrosion. 3rd ed. Houston: NACE International, 1995.

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Testing, European Federation of Corrosion Working Party on Physico Chemical Methods of Corrosion. Guidelines on electrochemical corrosion measurements. London: Institute of Metals, 1990.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Division., ed. Electrochemical studies of corrosion inhibitors. [Washington, DC]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1990.

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Robert, Baboian, and National Association of Corrosion Engineers. Unit Committee T-3L on Electrochemical and Electrical Techniques for Corrosion Measurement and Control., eds. Electrochemical techniques for corrosion engineering. Houston, Tex: National Association of Corrosion Engineers, 1986.

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Kearns, JR, JR Scully, PR Roberge, DL Reichert, and JL Dawson, eds. Electrochemical Noise Measurement for Corrosion Applications. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 1996. http://dx.doi.org/10.1520/stp1277-eb.

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Grishina, E. P. Electrochemical oxidation and corrosion of metals. Hauppauge, N.Y: Nova Science Publishers, 2010.

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1956-, Kearns Jeffery R., ASTM Committee G-1 on Corrosion of Metals., and International Symposium on Electrochemical Noise Measurement for Corrosion Applications (1st : 1994 : Montréal, Québec), eds. Electrochemical noise measurement for corrosion applications. West Conshohocken, PA: ASTM, 1996.

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Grishina, E. P. Electrochemical oxidation and corrosion of metals. New York: Nova Science Publishers, 2010.

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Grishina, E. P. Electrochemical oxidation and corrosion of metals. Hauppauge, N.Y: Nova Science Publishers, 2010.

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Book chapters on the topic "Electrochemical corrosion"

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Perez, Nestor. "Electrochemical Corrosion." In Electrochemistry and Corrosion Science, 1–23. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24847-9_1.

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Lvov, Serguei N. "Electrochemical Corrosion." In Introduction to Electrochemical Science and Engineering, 225–37. 2nd ed. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781315296852-9.

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Dornbusch, Michael. "Electrochemical Methods." In Corrosion Analysis, 38–110. Boca Raton, FL : CRC Press, Taylor & Francis Group, [2018] | "A science publishers book.": CRC Press, 2018. http://dx.doi.org/10.1201/9781315208480-2.

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Bradford, Samuel A. "Electrochemical Corrosion Theory." In Corrosion Control, 33–46. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4684-8845-6_3.

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Eden, D. A., Q. J. Meng, M. Mendez, and M. Yunovich. "Electrochemical Noise." In Uhlig's Corrosion Handbook, 1167–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470872864.ch86.

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Pedeferri, Pietro. "Electrochemical Mechanism." In Corrosion Science and Engineering, 17–35. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97625-9_2.

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Broomfield, John P. "Electrochemical repair techniques." In Corrosion of Steel in Concrete, 143–214. 3rd ed. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003223016-7.

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Chess, Paul. "Electrochemical theory." In Electrochemical Processes and Corrosion in Reinforced Concrete, 47–57. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003348979-6.

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Chess, Paul. "Electrochemical processes." In Electrochemical Processes and Corrosion in Reinforced Concrete, 1–10. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003348979-1.

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Ohtsuka, Toshiaki, Atsushi Nishikata, Masatoshi Sakairi, and Koji Fushimi. "Electrochemical Fundamentals of Corrosion and Corrosion Protection." In SpringerBriefs in Molecular Science, 1–15. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6820-1_1.

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Conference papers on the topic "Electrochemical corrosion"

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Shimakura, Toshiaki, Yutaka Ishida, and Tomomi Watanabe. "A New Electrochemical Method for Scab Corrosion." In SAE Automotive Corrosion and Prevention Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1991. http://dx.doi.org/10.4271/912281.

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Leping, Zhang, Hu Shanshan, Wang Baoshuai, Mei Neng, Li Ruoqian, and Xiao Xia. "Electrochemical corrosion in electric energy meters." In 2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI). IEEE, 2019. http://dx.doi.org/10.1109/icemi46757.2019.9101771.

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NEMECEK, JIRI, MILAN KOURIL, ROSTISLAV SULC, SARKA MSALLAMOVA, and TOMAS LOVASI. "Electrochemical injection of cathionic corrosion inhibitors." In Sixth International Conference on Advances in Civil, Structural and Environmental Engineering - ACSEE 2017. Institute of Research Engineers and Doctors, 2017. http://dx.doi.org/10.15224/978-1-63248-139-9-27.

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Caldora, Federico Cesar, Juan Pedro Rossi, and Adolfo Pellicano. "Electrochemical Techniques for Corrosion Assessment in Oil Production Systems." In SPE International Symposium on Oilfield Corrosion. Society of Petroleum Engineers, 2004. http://dx.doi.org/10.2118/87569-ms.

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Sturgeon, A. J., and D. C. Buxton. "The Electrochemical Corrosion Behavior of HVOF Sprayed Coatings." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p1011.

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Abstract Thermal spraying of corrosion resistant alloys onto low alloy steel substrates has received much attention as a method to protect against corrosion in seawater or corrosive solutions, such as mineral or organic acids. The need to ensure high coating quality with minimal porosity and cracking, and with low oxide levels is best achieved in metallic alloys using the high velocity oxyfuel (HVOF) spraying process. This article investigates the electrochemical corrosion behavior of HVOF sprayed coatings, covering coating preparation and characterization, immersion testing, and electrochemical testing. The discussion provides information on immersion test results, polarization plots for coatings, comparison of corrosion performance, influence of microstructure on corrosion performance, and comparison with bulk alloy materials. The results reported in this article have been selected to demonstrate the use of the cyclic potentiodynamic polarization method to rank the corrosion performance of HVOF sprayed Ni-alloy coatings.

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Mills, Douglas J., Joshua Zatland, and Nicola M. Everitt. "Experience Using Electrochemical Noise for Testing Green Corrosion Inhibitors." In SPE International Oilfield Corrosion Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205475-ms.

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Abstract ‘Green’ corrosion inhibitors derived from plant materials provide environmentally friendly alternatives to conventional corrosion inhibitors. They are also much cheaper if using a biomass waste stream or abundant plant material as the source material. There are many examples in literature of different trials, from henna leaves to celery seeds to banana peel. Although it is known that extracts contain electron-rich polar atoms such as N, O, S and P which make them potentially effective inhibitors, it is difficult to predict on a molecular basis what will work well and what will not, since many interacting factors may be at play in complementary interactions. To assist in predicting the inhibition efficiency of inhibitors under varying conditions and choosing the most effective, what is needed is a short-term test which will obviate the need for tedious weight loss experiments. The Electrochemical Noise Method (ENM) uses the natural fluctuations which arise during electrochemical activity to gain information about the corrosion process. Using ENM is quick and non-intrusive method which makes it ideal for screening. Hence a rig has been designed and manufactured which allows for measurement to be made in stirred as well as static conditions and minimises the occurrence of crevice corrosion at the electrodes. Crevice corrosion is a hazard for ENM electrodes when trying to make a comparison with corrosion inhibition calculated using the standard weight loss measurement after immersion (WLM) method. For these preliminary trials we are exploring corrosion of mild steel in HCl in both stirred and unstirred conditions at room temperature. Results are presented comparing ENM measurements with conventional WLM for both Propargyl Alcohol (a conventional industrial corrosion inhibitor) and broccoli extract. Our results suggest that stirring does not make any difference to the noise measured in ENM. The amount of material lost calculated by ENM and WLM (Rn and weight loss values) can be directly compared and show close comparison. It seems likely that as a way of assessing inhibitors quickly (which is particularly important in the testing of "green" inhibitors) that this ENM approach has a lot to offer.

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Hua, Y. N., S. Redkar, Ron Dickinson, S. L. Peh, and Shirley. "A Study on Fluorine-Induced Corrosion on Microchip Aluminum Bondpads." In ISTFA 2003. ASM International, 2003. http://dx.doi.org/10.31399/asm.cp.istfa2003p0249.

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Abstract In the authors' previous paper, we studied the defects from Fluorine-Induced Corrosion on microchip Al bondpads using SEM, EDX, TEM, AES, IC, XPS and TOF-SIMS techniques. An unknown F-Al compound was found and identified as [AlF6]3-. In this paper, we will further study the chemical mechanisms of Fluorine-Induced Corrosion on microchip Al bondpads and propose a theoretical electrochemical model to reveal the secrets of Fluorine-Induced Corrosion on Al bondpads. To support this new theoretical model, we will provide substantiating data from TOFSIMS analysis and other failure analysis techniques. According to the theoretical model of Fluorine-induced Corrosion proposed, fluorine contamination on Al bondpads will cause two types of corrosions. First, fluorine reacts with Al and forms a complex compound [AlF6]3- on the affected area, which we will refer to as Fluorine Corrosion. Once the compound of [AlF6]3- forms on Al bondpads, it will form an Anode and cause further electrochemical reactions from O2, N2 and H2O (moisture) at the Cathode. The new products of further electrochemical reactions will be [OH]- and [NH4]+ ions. The new product of [OH]- ions will react with Al and cause further Al corrosion on bondpads and form corrosive product consisting of Al(OH)3, which we will refer to as [OH]- Corrosion. The new product of [NH4]+ ions will combine with [AlF6]3- and form a corrosive complex compound (NH4)3(AlF6). This proposed corrosion mechanism results in non-stick bondpad problem.

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Glass, Gareth. "The halo effect and its electrochemical repair in reinforced concrete." In 1st Corrosion and Materials Degradation Web Conference. Basel, Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/cmdwc2021-09961.

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Serritella, Eric E. "Zinc Electrochemical Metallizing for Corrosion Protection of Automobile Wheel Hubs." In SAE Automotive Corrosion and Prevention Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1991. http://dx.doi.org/10.4271/912288.

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"Review of Electrochemical Principles as Applied to Corrosion of Steel in a Concrete or Grout Environment." In "SP-102: Corrosion, Concrete, & Chlorides". American Concrete Institute, 1987. http://dx.doi.org/10.14359/1633.

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Reports on the topic "Electrochemical corrosion"

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Tedd Lister, Ron Mizia, Sandra Birk, Brent Matteson, and Hongbo Tian. Electrochemical Corrosion Testing of Neutron Absorber Materials. Office of Scientific and Technical Information (OSTI), October 2006. http://dx.doi.org/10.2172/911717.

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Tedd Lister, Ron Mizia, Arnold Erickson, and Tammy Trowbridge. Electrochemical Corrosion Testing of Neutron Absorber Materials. Office of Scientific and Technical Information (OSTI), May 2007. http://dx.doi.org/10.2172/912462.

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lister, tedd e., and Ronald E. Mizia. Electrochemical Corrosion Testing of Borated Stainless Steel Alloys. Office of Scientific and Technical Information (OSTI), May 2007. http://dx.doi.org/10.2172/912469.

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lister, tedd e., and Ronald E. Mizia. Electrochemical Corrosion Testing of Borated Stainless Steel Alloys. Office of Scientific and Technical Information (OSTI), September 2007. http://dx.doi.org/10.2172/919568.

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Roy, Ajit. Galvanic corrosion testing using electrochemical and immersion techniques. Office of Scientific and Technical Information (OSTI), July 1996. http://dx.doi.org/10.2172/2647.

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EDGAR, C. Electrochemical noise based corrosion monitoring: FY 2001 final report. Office of Scientific and Technical Information (OSTI), August 2001. http://dx.doi.org/10.2172/807272.

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Smith, H. D. Electrochemical corrosion-scoping experiments: An evaluation of the results. Office of Scientific and Technical Information (OSTI), September 1988. http://dx.doi.org/10.2172/60502.

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EDGEMON, G. L. Status of Database for Electrochemical Noise Based Corrosion Monitoring. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/797750.

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DUNCAN JB. ELECTROCHEMICAL CORROSION STUDY FOR TANK 241-AY-102 SLUDGE. Office of Scientific and Technical Information (OSTI), September 2002. http://dx.doi.org/10.2172/940008.

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Frese, Jr., K., and D. Summers. Investigation of electrochemical corrosion of semiconductors. Final subcontract report. Office of Scientific and Technical Information (OSTI), August 1985. http://dx.doi.org/10.2172/5391532.

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