Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.8
3.1
Journals
Materials
Special Issues
Corrosion and Protection of Metals and Alloys: Recent Advances and...
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Corrosion and Protection of Metals and Alloys: Recent Advances and Future Prospects

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Corrosion".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 4116

Special Issue Editors

Prof. Dr. Marina Cabrini

E-Mail Website
Guest Editor
Department of Engineering and Applied Sciences, University of Bergamo, 24044 Dalmine, BG, Italy
Interests: electrochemical and corrosion; environmentally assisted cracking; hydrogen diffusion and embrittlement; corrosion of additive manufactured alloys; biomaterials
Special Issues, Collections and Topics in MDPI journals
Dr. Alessandro Carrozza

E-Mail Website
Guest Editor
Department of Engineering and Applied Sciences, University of Bergamo, 24044 Dalmine, BG, Italy
Interests: corrosion behavior; hydrogen embrittlement; additive manufacturing; titanium alloys; heat treatments; mechanical properties

Special Issue Information

Dear Colleagues,

Several studies published during the last decades have emphasized that the corrosion of materials costs society 3-5% of GDP yearly. This is mainly due to the necessity to rebuild or restore preexisting damaged structures, resulting in a significant economic and environmental impact. Furthermore, most of these expenses are avoidable via proper material selection. Therefore, the topic of corrosion protection and prevention strategies is a hot topic nowadays. As a consequence of this, several approaches are being thoroughly investigated, ranging from protective coatings to inherently corrosion-resistant alloys. However, the corrosion behavior of metals is greatly dependent on the environmental conditions of application, but also composition, microstructure and surface finishing. Additionally, the rise of new technologies and materials (e.g., additive manufacturing, new joining techniques, high entropy alloys) results in innovative materials and microstructures, characterized by unique combinations of properties and corrosion behaviors.

This Special Issue aims at collecting works dealing with the corrosion behavior of metals and alloys. Additionally, authors focusing on corrosion protection mechanisms, surface treatments and innovative characterization techniques are very welcome to submit their works. Full papers, communications and reviews dealing with traditional and/or innovative materials will be accepted.

Prof. Dr. Marina Cabrini
Dr. Alessandro Carrozza
Guest Editors

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. Materials is an international peer-reviewed open access semimonthly 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

  • metals
  • alloys
  • corrosion
  • electrochemical techniques
  • coatings
  • stress corrosion cracking
  • corrosion protection
  • environmental assisted cracking
  • hydrogen diffusion
  • hydrogen embrittlement

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

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

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 6190 KiB  
Article
Physicochemical Properties of (La,Sr)CoO3 Thick Films on Fe-25Cr Steel under Exposure to SOFC Cathode Operating Conditions
by Janusz Prażuch, Michał Pyzalski, Daniel Fernández González and Tomasz Brylewski
Materials 2024, 17(15), 3791; https://doi.org/10.3390/ma17153791 - 1 Aug 2024
Viewed by 323
Abstract
La0.6Sr0.4CoO3 (LSC) coatings with a thickness of 50–100 µm were deposited on Fe-25Cr ferritic stainless steel (DIN 50049) via screen printing. The required suspension had been prepared using fine LSC powders synthesised using EDTA gel processes. In its [...] Read more.
La0.6Sr0.4CoO3 (LSC) coatings with a thickness of 50–100 µm were deposited on Fe-25Cr ferritic stainless steel (DIN 50049) via screen printing. The required suspension had been prepared using fine LSC powders synthesised using EDTA gel processes. In its bulk form, the LSC consisted entirely of the rhombohedral phase with space group R-3c, and it exhibited high electrical conductivity (~144 S·cm−1). LSC-coated steel was oxidised in air at 1073 K, i.e., under conditions corresponding to SOFC cathode operation, for times of up to 144 h. The in situ electrical resistance of the steel/La0.6Sr0.4CoO3 layered system during oxidation was measured. The products formed on the samples after the oxidation reaction resulting from exposure to the corrosive medium were investigated using XRD, SEM-EDS, and TEM-SAD. The microstructural, nanostructural, phase, and chemical analysis of films was performed with a focus on the film/substrate interface. It was determined that the LSC coating interacts with the oxidised steel in the applied conditions, and a multi-layer interfacial zone is formed. Detailed TEM-SAD observations indicated the formation of a main layer consisting of SrCrO4, which was the reaction product of (La,Sr)CoO3, and the Cr2O3 scale formed on the metal surface. The formation of the SrCrO4 phase resulted in improved electrical conductivity of the investigated metal/ceramics layered composite material, as demonstrated by the low area-specific resistance values of 5 mΩ·cm2, thus making it potentially useful as a SOFC interconnect material operating at the tested temperature. In addition, the evaporation rate of chromium measured for the uncoated steel and the steel/La0.6Sr0.4CoO3 layered system likewise indicates that the coating is capable of acting as an effective barrier against the formation of volatile compounds of chromium. Full article
(This article belongs to the Special Issue Corrosion and Protection of Metals and Alloys: Recent Advances and Future Prospects)
►▼ Show Figures

Figure 1

16 pages, 6145 KiB  
Article
Electrochemical Impedance Spectroscopy Analysis of Organic Epoxy Coatings Reinforced with Nano Clay
by Davide Asperti, Marina Cabrini, Sergio Lorenzi, Giuseppe Rosace, Abdollah Omrani and Tommaso Pastore
Materials 2024, 17(12), 3028; https://doi.org/10.3390/ma17123028 - 20 Jun 2024
Viewed by 423
Abstract
Electrochemical impedance spectroscopy (EIS) is a modern and efficient method for the evaluation of the protective abilities of coatings. However, the interpretation of the experimental data is a difficult task. This paper aims to investigate the effect of the addition of a nano [...] Read more.
Electrochemical impedance spectroscopy (EIS) is a modern and efficient method for the evaluation of the protective abilities of coatings. However, the interpretation of the experimental data is a difficult task. This paper aims to investigate the effect of the addition of a nano clay, Cloesite 30B®, on the barrier properties of an epoxy-based system through electrochemical impedance spectroscopy in an aerated sodium chloride solution. The EIS spectra of the samples analysed showed different evolutions over time. The subsequent processing of spectra using equivalent electrical circuits is an excellent analytical tool and allows the protective capacity of coatings to be assessed. By using this analysis, it was possible to define and comprehend the impact of adding nano clay in different concentrations to the epoxy resin coating. The work has shown the effectiveness of increasing the barrier effect of the coating with this type of nano clay. However, the improvement is linked to obtaining a correct dispersion of nanoparticles. Otherwise, there is the formation of macro-clusters of particles inside the coating. Their appearance can cause a deterioration in coating performance. Full article
(This article belongs to the Special Issue Corrosion and Protection of Metals and Alloys: Recent Advances and Future Prospects)
►▼ Show Figures

Figure 1

15 pages, 2830 KiB  
Article
Corrosion Study on Duplex Stainless Steel UNS S31803 Subjected to Solutions Containing Chloride Ions
by Lucas Menezes de Souza, Elaine Pereira, Thiago Barreto da Silva Amaral, Sergio Neves Monteiro and Afonso Rangel Garcez de Azevedo
Materials 2024, 17(9), 1974; https://doi.org/10.3390/ma17091974 - 24 Apr 2024
Viewed by 726
Abstract
In the present work, the influence of a corrosive environment and temperature on the corrosion resistance properties of duplex stainless steel S31803 was evaluated. The corrosive process was carried out using solutions of 1.5% HCl (m/m) and 6% FeCl3 (m/m), at temperatures [...] Read more.
In the present work, the influence of a corrosive environment and temperature on the corrosion resistance properties of duplex stainless steel S31803 was evaluated. The corrosive process was carried out using solutions of 1.5% HCl (m/m) and 6% FeCl3 (m/m), at temperatures of 25 and 50 °C. The microstructure of UNS S31803 duplex stainless steel is composed of two phases, ferrite and austenite, oriented in the rolling direction, containing a ferrite percentage of 46.2% in the rolling direction and 56.1% in the normal direction. Samples, when subjected to corrosive media and temperature, tend to decrease their mechanical property values. It was observed, in both corrosive media, that with increasing test temperature, there is an increase in the corrosion rate, both uniform and pitting. The sample in HCl solution obtained a uniform corrosion rate of 0.85% at 25 °C and 0.92% at 50 °C and pitting rates of 0.77% and 1.47% at the same temperatures, respectively. When tested in FeCl3 solution, it obtained uniform corrosion of 0.0006% and 0.93% and pitting of 0.53% and 18.5%, at the same temperatures. A reduction in dissolution potentials is also noted, thus characterizing greater corrosion in the samples with increasing temperature. Full article
(This article belongs to the Special Issue Corrosion and Protection of Metals and Alloys: Recent Advances and Future Prospects)
►▼ Show Figures

Figure 1

18 pages, 13272 KiB  
Article
Comparing Electrochemical Passivation and Surface Film Chemistry of 654SMO Stainless Steel and C276 Alloy in Simulated Flue Gas Desulfurization Condensates
by Luhai Liao, Yifan Cheng, He Zhang, Xuwen Yuan and Fengguang Li
Materials 2024, 17(8), 1827; https://doi.org/10.3390/ma17081827 - 16 Apr 2024
Viewed by 1036
Abstract
This research examines the behavior of electrochemical passivation and the chemistry of surface films on 654SMO super austenitic stainless steel and C276 nickel-based alloy in simulated condensates from flue gas desulfurization in power plant chimneys. The findings indicate that the resistance to polarization [...] Read more.
This research examines the behavior of electrochemical passivation and the chemistry of surface films on 654SMO super austenitic stainless steel and C276 nickel-based alloy in simulated condensates from flue gas desulfurization in power plant chimneys. The findings indicate that the resistance to polarization of the protective film on both materials initially rises and then falls with either time spent in the solution or the potential of anodic polarization. Comparatively, 654SMO exhibits greater polarization resistance than C276, indicating its potential suitability as a chimney lining material. Mott–Schottky analysis demonstrates that the density of donors in the passive film formed on 654SMO exceeds that on C276, potentially due to the abundance of Fe oxide in the passive film, which exhibits the characteristics of an n-type semiconductor. The primary components of the passive films on both materials are Fe oxides and Cr oxides. The formation of a thin passive film on C276 in the simulated condensates is a result of the low Gibbs free energy of nickel oxide and low Cr content. The slower diffusion coefficient of point defects leads to the development of a thicker and more compact passive film on the surface of 654SMO. Full article
(This article belongs to the Special Issue Corrosion and Protection of Metals and Alloys: Recent Advances and Future Prospects)
►▼ Show Figures

Figure 1

16 pages, 8481 KiB  
Article
Investigating the Corrosive Influence of Chloride Ions on Slag Recovery Machine Inner Guide Wheel in Power Plants
by Dalong Hu, Xiaohan Ma, Jintao Bai, Yongzhe Fan, Yaohong Yu, Ruina Ma, Jiangtao Zhang, An Du, Tianhao Xi, Xue Zhao and Shengxing Wang
Materials 2024, 17(2), 457; https://doi.org/10.3390/ma17020457 - 18 Jan 2024
Viewed by 876
Abstract
An important method that coal-fired power plants use to realise low-cost zero discharge of desulfurisation wastewater (FGD wastewater) is to utilise wet slag removal systems. However, the high Cl− content of FGD wastewater in wet slag removal systems causes environmental damage. In [...] Read more.
An important method that coal-fired power plants use to realise low-cost zero discharge of desulfurisation wastewater (FGD wastewater) is to utilise wet slag removal systems. However, the high Cl− content of FGD wastewater in wet slag removal systems causes environmental damage. In this study, the corrosion behaviour of the inner guide wheel material, 20CrMnTi, was studied using dynamic weight loss and electrochemical methods. X-ray diffraction, scanning electron microscopy, and energy spectroscopy were used to analyse the organisational and phase changes on the surfaces and cross sections of the samples at different Cl− concentrations. The corrosion rate increased with the Cl− concentration up to 20 g/L, but it decreased slightly when the Cl− concentration exceeded 20 g/L. In all the cases, the corrosion rate exceeded 0.8 mm/a. The corrosion product film density initially increased and then decreased as the Cl− concentration increased. The corrosion products comprised mainly α-FeOOH, γ-FeOOH, β-FeOOH, Fe3O4, and γ-Fe2O3. Full article
(This article belongs to the Special Issue Corrosion and Protection of Metals and Alloys: Recent Advances and Future Prospects)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop