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Metals
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Corrosion and Electrochemical Behaviors of Metals
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Corrosion and Electrochemical Behaviors of Metals

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

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 10620

Special Issue Editor

Dr. Antonio Collazo

E-Mail Website
Guest Editor
CINTECX, ENCOMAT Group, Universidade de Vigo, 36310 Vigo, Spain
Interests: corrosion and its prevention; interface phenomena and the characterization of surfaces; coatings; surface modification at nano and micrometric scales; sol–gel; electrochemical, mechanical, and structural characterization; electrochemical impedance; advanced high-strength materials; shape-memory alloys; welding

Special Issue Information

Dear Colleagues,

In recent years, renewed interest in the study of corrosion phenomena and the development of new materials and more resistant coatings has led to significant improvements in both fundamental knowledge and engineering applications in this field.

This Special Issue covers a broad spectrum of recent scientific topics and concepts in the field of corrosion research and electrochemical behavior of metals, providing an excellent opportunity for researchers, academics, and technologists from leading universities, companies, and research centers to present their latest research at the forefront of corrosion knowledge and engineering.

Original papers and critical reviews are awaited in topics such as:

  • Electrochemical testing methods for the study of corrosion behavior of advanced engineering materials and coatings;
  • Corrosion kinetics, passivity, and localized corrosion;
  • Synthesis and characterization of new corrosion resistance materials;
  • Newest results in surface coatings and surface modifications;
  • Fundamental aspects of interfacial science;
  • Mechanisms and methods of corrosion control.

My hope is that this issue will be a valuable reference source for any researcher interested in these areas.

Dr. Antonio Collazo
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 protection
  • corrosion resistant alloys
  • corrosion inhibitors
  • surface modification
  • coatings
  • sol–gel
  • electrochemical techniques
  • passivity
  • EIS

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (5 papers)

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Research

19 pages, 11248 KiB  
Article
Influence on Pitting Corrosion Resistance of AISI 301LN and 316L Stainless Steels Subjected to Cold-Induced Deformation
by Paulo M. O. Silva, Mucio C. C. Filho, José A. da Cruz, Antonio J. M. Sales, Antonio S. B. Sombra and João Manuel R. S. Tavares
Metals 2023, 13(3), 443; https://doi.org/10.3390/met13030443 - 21 Feb 2023
Cited by 7 | Viewed by 1903
Abstract
Austenitic stainless steels that exhibit good corrosion resistance have recently found increasing applications in industry and transportation. This article addresses the influence of cold rolling and deformation on the pitting corrosion resistance of AISI 301LN and 316L stainless steels. The results indicate that [...] Read more.
Austenitic stainless steels that exhibit good corrosion resistance have recently found increasing applications in industry and transportation. This article addresses the influence of cold rolling and deformation on the pitting corrosion resistance of AISI 301LN and 316L stainless steels. The results indicate that the content of martensite increases as the cold rolling reduction also increases. The current work combined different techniques such as optical microscopy and scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS) analyses. Corrosion tests were carried out, in accordance with the ASTM standards. The results confirm that the 316L steel performed better than the 301LN, regarding pitting corrosion, even when deformed. This is due to the high molybdenum (Mo) content, which guarantees greater corrosion resistance. The conducted corrosion tests showed that the increase of cold deformation reduces the resistance to pitting and overall corrosion in both steels. It was found that the 301LN stainless steel has higher susceptibility to deformation-induced martensite and, despite the addition of nitrogen, it still has a lower performance relative to the 316L steel. The current work focused on evaluating the formation of pits and the dynamics of the microstructures of the AISI 301LN and 316L steels with their mechanical properties and corrosion resistance in a saline environment including chlorides. Full article
(This article belongs to the Special Issue Corrosion and Electrochemical Behaviors of Metals)
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20 pages, 4941 KiB  
Article
Effect of the Annealing Treatment on the Microstructure and Corrosion Resistance of a Cu-Al-Ni Alloy
by Carmen M. Abreu, Iria Feijoo and Consuelo Pérez
Metals 2022, 12(9), 1473; https://doi.org/10.3390/met12091473 - 4 Sep 2022
Cited by 3 | Viewed by 1875
Abstract
The influence of annealing treatment on the microstructure and the corrosion behaviour of a complex bronze Al-Ni alloy was analysed. The microstructural characterization after thermic treatment shows that the retained β-phase disappears and the KII-phase undergoes a spheroidization process. Moreover, there [...] Read more.
The influence of annealing treatment on the microstructure and the corrosion behaviour of a complex bronze Al-Ni alloy was analysed. The microstructural characterization after thermic treatment shows that the retained β-phase disappears and the KII-phase undergoes a spheroidization process. Moreover, there is an augmentation of K-phase precipitates within the α-phase, particularly KIV and KV, which homogenizes the distribution of alloying elements between the phases. The corrosion behaviour was investigated by means of selective corrosion tests, potentiodynamic measurements, and electrochemical impedance spectroscopy. All of the experiments showed that thermic treatment greatly improves the corrosion resistance of the alloy. As such, annealing treatment influences a microstructure to be more dealloying resistant, which allows the development of a more protective air-formed passive film. On the other hand, the lower current registered after anodic peaks and Electrochemical Impedance Spectroscopy data seem be correlated with a more protective layer formed on annealed material. As such, this protective character is due to a greater incorporation of Al3+, Ni2+ and Cu2+ in the passive film, as revealed by X-ray Photoelectron Spectroscopy results. Full article
(This article belongs to the Special Issue Corrosion and Electrochemical Behaviors of Metals)
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10 pages, 3914 KiB  
Article
Corrosion of Cu in Antifreeze Solutions with Triazine- or Triazole-Type Corrosion Inhibitors for 3 Weeks
by HeeJin Jang, Juhee Lee, Yong-Jin Chun and Soon-Young Soh
Metals 2022, 12(7), 1192; https://doi.org/10.3390/met12071192 - 13 Jul 2022
Viewed by 1490
Abstract
The corrosion behavior of Cu in antifreeze solutions containing 2,4,6-Tris(5-carboxypentylamino)1,3,5-triazine, 2,4,6-Tris(11-carboxyundecylamino)1,3,5-triazine, 1-Aminomethyl(N′,N′-di(2-hydroxyethyl)tolutriazole, or 1-Aminomethyl(N′,N′-di(2-hydroxyethyl)benzotriazole as corrosion inhibitors were examined by immersion test for 3 weeks as well as potentiodynamic polarization tests before and after immersion test. The corrosion rate of Cu was as [...] Read more.
The corrosion behavior of Cu in antifreeze solutions containing 2,4,6-Tris(5-carboxypentylamino)1,3,5-triazine, 2,4,6-Tris(11-carboxyundecylamino)1,3,5-triazine, 1-Aminomethyl(N′,N′-di(2-hydroxyethyl)tolutriazole, or 1-Aminomethyl(N′,N′-di(2-hydroxyethyl)benzotriazole as corrosion inhibitors were examined by immersion test for 3 weeks as well as potentiodynamic polarization tests before and after immersion test. The corrosion rate of Cu was as relatively high as 10−5 A/cm2 in antifreeze solution with the inhibitor (2,4,6-Tris(11-carboxyundecylamino)1,3,5-triazine) with a high molecular weight of 713 for a short time duration compared with antifreeze solutions using the other three types of inhibitors. However, the corrosion inhibition effect of this large molecule became prominent after 2 weeks, reducing the corrosion rate by about four orders of magnitude. Corrosion of Cu in the solution with inhibitors of high molecular weight of 440 or higher decreased gradually with time, while that in the solution with small molecules slightly increased over 3 weeks. Full article
(This article belongs to the Special Issue Corrosion and Electrochemical Behaviors of Metals)
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13 pages, 3480 KiB  
Article
Inhibitory Effect of Commercial Inhibitor VCI 379/611 on the Corrosion Behaviour of HTCS-130 Tool Steel for Hot Work
by Sandra Brajčinović, Anita Begić Hadžipašić and Jožef Medved
Metals 2022, 12(6), 966; https://doi.org/10.3390/met12060966 - 4 Jun 2022
Cited by 2 | Viewed by 1673
Abstract
This paper presents the results of a study of the influence of water and the commercial inhibitor VCI 379/611 on the corrosion behaviour of HTCS-130 hot work tool steel. Using the thermodynamic program Thermo-Calc, phase equilibria were determined according to the choice of [...] Read more.
This paper presents the results of a study of the influence of water and the commercial inhibitor VCI 379/611 on the corrosion behaviour of HTCS-130 hot work tool steel. Using the thermodynamic program Thermo-Calc, phase equilibria were determined according to the choice of calculation conditions and the known chemical composition of tool steels. From the obtained projections, it is possible to observe the secretion of individual phases at certain temperatures. To obtain insight into the corrosion resistance of steel, the following electrochemical methods were used: open circuit potential measurement; electrochemical impedance spectroscopy; and Tafel extrapolation. Metallographic tests were performed on a sample previously etched in nital to identify the microstructure of the steel. Using an optical microscope, the sample surface was analysed after each measurement. Images of the sample surface subjected to water without inhibitors indicate the occurrence of pitting corrosion. The presence of tungsten and molybdenum carbides was identified by scanning electron microscopy and energy dispersion spectroscopy. It was found that the corrosion process is more pronounced in the area of the metal base while in the areas of excreted carbides, weaker corrosion activity was observed. Full article
(This article belongs to the Special Issue Corrosion and Electrochemical Behaviors of Metals)
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20 pages, 4828 KiB  
Article
Corrosion Activity of Carbon Steel B450C and Low Chromium Ferritic Stainless Steel 430 in Chloride-Containing Cement Extract Solution
by Lucien Veleva, David Bonfil, Ángel Bacelis, Sebastian Feliu, Jr., Marina Cabrini and Sergio Lorenzi
Metals 2022, 12(1), 150; https://doi.org/10.3390/met12010150 - 14 Jan 2022
Cited by 3 | Viewed by 2535
Abstract
The carbon steel B450C and low chromium SS 430 ferritic samples were exposed for 30 days to chloride-containing (5 g L−1 NaCL) cement extract solution. The initial pH ≈ 13.88 decreased to pH ≈ 9.6, associated mainly with the consumption of OH [...] Read more.
The carbon steel B450C and low chromium SS 430 ferritic samples were exposed for 30 days to chloride-containing (5 g L−1 NaCL) cement extract solution. The initial pH ≈ 13.88 decreased to pH ≈ 9.6, associated mainly with the consumption of OH− ions and the formation of γ-FeOOH, α-FeOOH, Fe3O4 and Cr(OH)3, as suggested by XRD and XPS analysis, in the presence of CaCO3 and NaCl crystals. The deep corrosion damages on B450C were observed around particles of Cu and S as local cathodes, while the first pitting events on the SS 430 surface appeared after 30 days of exposure. The change in the activity of each type of steel was provided by the potentiodynamic polarization curves (PDP). Two equivalent electrical circuits (EC) were proposed for quantitative analysis of EIS (Nyquist and Bode diagrams). The calculated polarization resistance (Rp), as an indicator of the stability of passive films, revealed that SS 430 presented relatively constant values, being two-three orders of magnitude higher than those of the carbon steel B450C. The calculated thickness (d) of the SS 430 passive layers was ≈0.5 nm and, in contrast, that of the B450C passive layers tends to disappear after 30 days. Full article
(This article belongs to the Special Issue Corrosion and Electrochemical Behaviors of Metals)
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