Development and Characterization of Coatings and Surface Treatments for Corrosion, Wear, and Tribocorrosion Protection of Materials in Hostile Environments

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Corrosion, Wear and Erosion".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 4254

Special Issue Editors


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Guest Editor
Fundación Tekniker, Eibar, Spain
Interests: corrosion; tribocorrosion; tribology; metals; surface treatments; coatings; offshore; bio-tribocorrosion; materials characterization

E-Mail Website
Guest Editor
Fundación Tekniker, Eibar, Spain
Interests: corrosion; tribocorrosion; tribology; metals; surface treatments; coatings; offshore; bio-tribocorrosion; materials characterization
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Special Issue Information

Dear Colleagues,

One of the greatest current concerns in corrosion science and surface engineering is the reduction and/or inhibition of materials deterioration in harsh working environments. Metallic materials are susceptible to specific atmospheres that can lead to great material losses due to corrosion in a wide range of applications and industrial sectors (materials processing, transportation, offshore technologies for renewable energy, aerospace, biomedicine, etc.). In fact, the costs of corrosion in developed countries are estimated to be around the 3–4% of the GNP. The situation is considerably aggravated when mechanical solicitations are combined to aggressive environments, which may involve a synergistic effect that results in unpredictable premature failures of materials and components. This is the case of tribocorrosion, which involves the simultaneous action of mechanical (wear) and electrochemical (corrosion) processes, resulting in a total material loss that is greater than the sum of the two processes taking place alone.

That is why the development of materials with increased durability through the modification of their surface properties by means of surface modification techniques or the development of protective coatings of different nature is of great interest in the field of corrosion science and engineering. In fact, it is well known that the employment of corrosion-control measurements can reduce up to one third of the costs associated to corrosion.

This Special Issue will serve as a forum for papers in the following concepts:

  • Theoretical and experimental research, knowledge, and new ideas in protective coatings and surface treatments for the protection against wear, corrosion, and/or tribocorrosion;
  • Recent developments in multifunctional organic, inorganic, hybrid coatings;
  • Understanding the degradation mechanisms of new materials and/or coatings through friction, wear, corrosion, and/or tribocorrosion;
  • The latest development of test methods considering the interplay between mechanical, chemical, and electrochemical interactions for the assessment of protective coatings;
  • Correlation of laboratory scale accelerated testing and in-field performance of materials and/or protective coatings;
  • Computer modeling and simulation to predict the performance of materials and/or protective coating and their durability in real service conditions.

Dr. Raquel Bayón
Dr. Ainara López-Ortega
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. Coatings 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

  • Protective coatings
  • Wear, corrosion and tribocorrosion
  • Multifunctional coatings
  • New testing methods
  • Performance modeling

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Published Papers (2 papers)

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Research

20 pages, 6184 KiB  
Article
Experimental Evaluation of Ceramic Coatings for Die Protection in Low-Pressure Die-Casting Process
by Ainara López-Ortega, Olatz Areitioaurtena, Elena Fuentes, Amaya Igartua, Luis Merchán, Enrique Pardo, Jessica Montero, Roberto Granado, Ignacio Martinez de la Pera, Joannes Mendizabal and Borja Zabala
Coatings 2024, 14(5), 643; https://doi.org/10.3390/coatings14050643 - 19 May 2024
Viewed by 905
Abstract
One of the most important factors in the LPDC process is the heat transfer during the solidification of the molten alloys, which is responsible for the resulting microstructure and, thus, the quality of the cast piece. The use of foundry coatings has been [...] Read more.
One of the most important factors in the LPDC process is the heat transfer during the solidification of the molten alloys, which is responsible for the resulting microstructure and, thus, the quality of the cast piece. The use of foundry coatings has been lately suggested as a proper strategy to control the heat transfer while protecting bonded moulds from aluminium adhesion by providing a barrier between the surface and the liquid metal. LPDC die coating failures usually come from the loss of adherence or excessive wear originated in the successive filling processes, which requires stopping production for the reapplication of the coating. In the present work, coatings with different insulation capabilities have been evaluated, in terms of adherence and wear tests, in order to select the most promising alternative for LPDC die coating. This study confirmed that surface preparation and cleanliness are vital for an adequate adhesion of the coatings to ensure their durability. The results evinced that the use of a primer layer provided a higher adhesion of the coatings and considerably improved their perfomance. The coating that presented the best results in terms of adhesion and wear resistance under different abrasive testing conditions was coating B3. Full article
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13 pages, 8939 KiB  
Article
High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction
by Wan-Bae Kim, Woo-Seok Choi, Kyu-Seok Lim, Soo-Haeng Cho and Jong-Hyeon Lee
Coatings 2021, 11(3), 328; https://doi.org/10.3390/coatings11030328 - 13 Mar 2021
Cited by 7 | Viewed by 2456
Abstract
The electrolytic reduction of a spent oxide fuel involves the liberation of oxygen in a molten salt LiCl–Li2O electrolyte, which creates a corrosive environment for typical structural materials. In this study, the corrosion behaviors of Al–Y-coated specimens in a Li molten [...] Read more.
The electrolytic reduction of a spent oxide fuel involves the liberation of oxygen in a molten salt LiCl–Li2O electrolyte, which creates a corrosive environment for typical structural materials. In this study, the corrosion behaviors of Al–Y-coated specimens in a Li molten salt kept under an oxidizing atmosphere at 650 °C for 72 and 168 h were investigated. The weight loss fraction of the coated specimen to bare specimen was approximately 60% for 3% Li2O and 54% for 8% Li2O at 72 h, and approximately 38% for 3% Li2O and 30% for 8% Li2O at 168 h. Corrosion was induced in the LiCl–Li2O molten salt by the basic oxide ion O2− via the basic flux mechanism, and the corrosion product was found to be dependent on the activity of the O2− ion. The increase in weight loss may have been caused by the increase in the O2− concentration due to the increase in the Li2O concentration rather than being because of the increased reaction time. The Al–Y coating was found to be beneficial for hot corrosion resistance, which can be useful for handling high-temperature lithium molten salt under an oxidizing atmosphere. Full article
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