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Metals
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Applications of Electrochemistry in Corrosion Science and in Practice
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Applications of Electrochemistry in Corrosion Science and in Practice

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 3282

Special Issue Editor

Prof. Dr. Branimir N. Grgur

E-Mail Website
Guest Editor
Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11020 Belgrade, Serbia
Interests: Intrinsically conducting polymers; electrochemical synthesis; electrochemical characterisation; corrosion; electrode materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is devoted to the application of electrochemical methods and techniques in the corrosion and protection of metal and alloys. Although many researchers have used electrochemical methods to investigate corrosion and protection, results are sometimes incorrectly interpreted. Corrosion measurement is usually conducted immediately after immersion of the sample in corrosion media, neglecting the significance of corrosion potentials’ time dependence. For example, for the diffusion-controlled reaction, the Tafel slope is usually determined from the polarization curve, giving the wrong value of corrosion current density. Additionally, it is conventional that for a coated metal, the corrosion rate is expressed as mm/year, even though this is localized corrosion and can be applied only to uncoated metals. As another example, the very important cyclic polarization measurement is sometimes incorrectly conducted. Many researchers conduct electrochemical impedance spectroscopy and analyze their results with electrical equivalent circuits without physical meaning. The application of scanning Kelvin probes is very important in corrosion measurements as well as electrochemical frequency modulation (EFM) as a nondestructive corrosion-measurement technique, but needs more explanation. Finally, the investigation of the influence of temperature on corrosion is rarely seen.

Hence, this Special Issue is devoted to the application of electrochemical corrosion measurements to different metals and alloys (construction metals, special alloys for dentistry, sea-water-resistant materials etc.), inhibitors (especially “green” inhibitors), composite protective coatings with conducting polymers, encapsulated inhibitors, passivation, nonhomogeneous corrosion (pitting, crevice, intergranular etc.) and other types of the corrosion and protection, with the goal of encouraging proper electrochemical analysis. Research articles, review articles and short communications are welcomed.

Prof. Dr. Branimir N. Grgur
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • corrosion and protection of metals
  • electrochemical techniques
  • polarization measurements, electrochemical impedance, scanning kelvin probe
  • electrochemical frequency modulation
  • inhibitors
  • coatings, conducting polymers

Published Papers (2 papers)

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Research

14 pages, 4704 KiB  
Article
Electrochemical Corrosion Behavior of 310S Stainless Steel in Hot Concentrated Tap Water
by Wen Xian, Zhong Yin, Lele Liu and Moucheng Li
Metals 2023, 13(4), 713; https://doi.org/10.3390/met13040713 - 05 Apr 2023
Cited by 2 | Viewed by 1261
Abstract
The corrosion behavior of 310S stainless steel was investigated in synthetic tap water and Ca2+ and Mg2+-free solutions with different concentration ratios at 80 °C using electrochemical measurement techniques and surface analysis methods. The main purpose was to obtain the [...] Read more.
The corrosion behavior of 310S stainless steel was investigated in synthetic tap water and Ca2+ and Mg2+-free solutions with different concentration ratios at 80 °C using electrochemical measurement techniques and surface analysis methods. The main purpose was to obtain the electrochemical corrosion characteristics under carbonate scale conditions. The specimens displayed a spontaneous passivation state in the solutions with or without Ca2+ and Mg2+ ions. With the enlargement of the concentration ratio of synthetic tap water from 1 to 10 times, the polarization resistance under free corrosion conditions and the pitting potential decreased by about 48% and 327 mV, respectively. The pitting tendency increased with increasing concentration ratio of tap water. The carbonate scales deposited from the synthetic tap water solutions were mainly composed of CaCO3, which led to a slight increase in the polarization resistance and the pitting potential and decrease in the passive current density. Full article
(This article belongs to the Special Issue Applications of Electrochemistry in Corrosion Science and in Practice)
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11 pages, 2838 KiB  
Article
Development of a New AuCuZnGe Alloy and Determination of Its Corrosion Properties
by Rebeka Rudolf, Peter Majerič, Vojkan Lazić and Branimir Grgur
Metals 2022, 12(8), 1284; https://doi.org/10.3390/met12081284 - 30 Jul 2022
Cited by 1 | Viewed by 1219
Abstract
In this paper, we present the idea and development of a new gold-copper-zinc-germanium (AuCuZnGe) alloy, which is related to the method of production and research of its key properties, so that the new Au alloy could be used for jewelry production and in [...] Read more.
In this paper, we present the idea and development of a new gold-copper-zinc-germanium (AuCuZnGe) alloy, which is related to the method of production and research of its key properties, so that the new Au alloy could be used for jewelry production and in dental technology. The research design was associated with the determination of appropriate chemical composition, manufacturing technology, and performing the characterization. Melting and casting technologies were used to cast the AuCuZnGe alloy while rolling was used to prepare the cylinders and cutting to make square plates with a = 10 mm and thickness of 1 mm. Such plates were provided for corrosion testing. Observation of the plate′s microstructure was performed with Scanning Electron Microscopy (SEM) equipped by Energy-Dispersive X-ray spectrometry (EDS) and X-ray diffraction (XRD). Corrosion testing involved performing the following measurements: Polarization, the open circuit potentials, and linear polarization resistance. Based on the SEM, EDS, XRD, and results of corrosion testing it can be concluded that the new AuCuZnGe alloy possesses high corrosion stability and can be classified as a high noble alloy. Full article
(This article belongs to the Special Issue Applications of Electrochemistry in Corrosion Science and in Practice)
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