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Metals
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Electrochemical Properties of Metallic Coatings
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Electrochemical Properties of Metallic Coatings

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

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 4212

Special Issue Editor

Prof. Dr. Tiegang Wang

E-Mail Website
Guest Editor
Tianjin Key Laboratory of High Speed Cutting and Precision Manufacturing, Tianjin University of Technology and Education, Tianjin 300222, China
Interests: hard coating; thin solid film; tool coatings; mechanical property; tribological behaviour; corrosion resistant performance; high temperature protective coatings; cutting performance

Special Issue Information

Dear Colleagues,

Although corrosion involves both chemical and electrochemical processes, the latter is the dominant form in the majority of cases, and electrochemical measurement and analysis play an extremely important role in corrosion studies. Metallic coating is an outstanding corrosion-protection method with extensive applications and has attracted tremendous attention. Coatings with good chemical stability can effectively protect the substrate materials from surface corrosion and remarkably prolong the service life. The electrochemical properties of metallic coatings not only directly reflect the corrosion protection on the substrate materials, but also provide sufficient information about the thermodynamic and kinetic processes of corrosion, thus providing an insight into the corrosion mechanism and further guidance for the coating design. From this point of view, the electrochemical properties of metallic coatings are a worthy and important topic for corrosion and protection in the past, present, and future.

The aim of this Special Issue is to exchange the progress and frontier of corrosion-protection knowledge for metallic coatings based on various electrochemical techniques, including (but not limited to) CV, Tafel, EIS, and LSV. I sincerely invite high-quality contributions that present innovative and significant findings and experiences on this topic.

Prof. Dr. Tiegang Wang
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
  • metallic coatings
  • electrochemical measurement
  • corrosion protection
  • open circuit potential
  • EIS
  • polarization
  • SVET

Published Papers (3 papers)

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Editorial

Jump to: Research

4 pages, 189 KiB  
Editorial
Electrochemical Properties of Metallic Coatings
by Fengting Cao, Guangyao Gao, Yameng Feng, Belay Abakuma Getachew and Tiegang Wang
Metals 2022, 12(12), 2125; https://doi.org/10.3390/met12122125 - 10 Dec 2022
Viewed by 1051
Abstract
The metallic coating is an outstanding corrosion-protection option with extensive applications, especially in high-temperature environments. Considering the close relationship between anti-corrosion ability and constitutions, it is necessary to acquire the electrochemical properties of metallic coatings for optimizing their corrosion resistance, and further provide [...] Read more.
The metallic coating is an outstanding corrosion-protection option with extensive applications, especially in high-temperature environments. Considering the close relationship between anti-corrosion ability and constitutions, it is necessary to acquire the electrochemical properties of metallic coatings for optimizing their corrosion resistance, and further provide guidance for coating design based on the protection mechanism. Thus, this Special Issue aims at collecting research articles focusing on the electrochemical properties of various metallic coatings, especially on the application of new electrochemical techniques for analyzing the corrosion protection process and mechanism of these coatings. Both experimental and theoretical types of research are welcome for the contribution. Full article
(This article belongs to the Special Issue Electrochemical Properties of Metallic Coatings)

Research

Jump to: Editorial

14 pages, 4173 KiB  
Article
Structure and Properties of Arc Ion Plating Deposited AlCrSiN Coatings Controlled by Pulsed Bias Voltage
by Rui Zhang, Yanmei Liu, Chongyang Wang, Fengting Cao, Qixiang Fan and Tiegang Wang
Metals 2023, 13(8), 1448; https://doi.org/10.3390/met13081448 - 11 Aug 2023
Viewed by 977
Abstract
AlCrSiN coatings are promising protective candidates for cutting and forming tools. During the coating deposition process, the microstructure and properties of the coatings were dramatically affected by bias voltages. To further optimize and enhance the AlCrSiN coating, a series of coatings were deposited [...] Read more.
AlCrSiN coatings are promising protective candidates for cutting and forming tools. During the coating deposition process, the microstructure and properties of the coatings were dramatically affected by bias voltages. To further optimize and enhance the AlCrSiN coating, a series of coatings were deposited at different pulse bias voltages using arc ion plating technology. By virtue of scanning electron microscopy, X-ray diffraction, scratch method, OCP, EIS, and other analytical methods, the effects of the pulse bias voltage on the crystal structure, microstructure, and mechanical, tribological, and electrochemical properties of the AlCrSiN coatings were analyzed. The study revealed that the pulse bias voltage exerted a slight influence on the aluminum and nitrogen content of the coatings. As the pulse bias voltage increased, the hardness, critical load, and tribological performance of the AlCrSiN coatings first increased gradually, and then were impaired slightly. When the pulse bias voltage was −100 V, the resulting AlCrSiN coating exhibited the densest structure, the highest hardness, the strongest adhesion, and the best wear resistance. In this case, the coating hardness and critical load reached 2668 HV and 72.7 N, respectively. The friction coefficient and wear rate were 0.35 and 1.02 × 10−3 μm3/N·μm, respectively. Simultaneously, the AlCrSiN coating demonstrated exceptional corrosion resistance in 3.5 wt.% NaCl solutions, surpassing uncoated 304 steel by 3~4 times. Full article
(This article belongs to the Special Issue Electrochemical Properties of Metallic Coatings)
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14 pages, 6574 KiB  
Article
Study on the Preparation and Corrosion Resistance Properties of Superhydrophobic Coatings on Galvanized Steel
by Wenjuan Chen, Haoran Shi, Weiwen Liu, Anran Zhao, Gang Pan, Anding Huang, Yinglu Yu and Luqi Ma
Metals 2023, 13(2), 260; https://doi.org/10.3390/met13020260 - 28 Jan 2023
Cited by 2 | Viewed by 1712
Abstract
The method of atmospheric corrosion protection of metals has always been a research hot spot at home and abroad. In this paper, superhydrophobic coating is prepared on the surface of galvanized steel by chemical etching using 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES), graphene oxide (GO), anhydrous ethanol [...] Read more.
The method of atmospheric corrosion protection of metals has always been a research hot spot at home and abroad. In this paper, superhydrophobic coating is prepared on the surface of galvanized steel by chemical etching using 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES), graphene oxide (GO), anhydrous ethanol and water-based varnish as the main raw materials. The constitution of the superhydrophobic coating surface and the corrosion resistance of the steel are studied by electrochemical testing, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and atomic force microscopy (AFM). Meanwhile, COMSOL software is used for the simulation of experiment. The results show that the surface of the superhydrophobic coating is composed of micro–nano sized papillary bulges, which play an important role in the improvement of metal corrosion resistance. The superhydrophobic coating effectively improves the alternating current impedance of the electrode and reduces the corrosion rate of the substrate. In addition, the results calculated by COMSOL software consist of the experimental results. Full article
(This article belongs to the Special Issue Electrochemical Properties of Metallic Coatings)
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