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Applied Sciences
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Corrosion and Protection with Hard Coatings
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Corrosion and Protection with Hard Coatings

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 October 2025 | Viewed by 464

Special Issue Editors

Prof. Dr. José A. Cabral-Miramontes

E-Mail Website
Guest Editor
FIME, Universidad Autónoma de Nuevo León Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), San Nicolás de los Garza 66455, Mexico
Interests: corrosion; coating; mechanical properties; metals; materials; material characterization; advanced materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Facundo Almeraya-Calderón

E-Mail Website
Guest Editor
Center for Innovation and Research in Aeronautical Engineering, Faculty of Mechanical and Electrical Engineering, Autonomous University of Nuevo León, San Nicolás de los Garza 66455, Mexico
Interests: corrosion electrochemical; coating; failure analysis; aeronautical alloys; metallurgical engineering; corrosion protection
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The ever-increasing demand for durable and reliable materials in diverse industries highlights the critical importance of effective corrosion protection strategies. This Special Issue focuses on the innovative application of hard coatings to combat corrosion across various environments and applications. Hard coatings are coatings deposited on metallic substrates to improve their desired properties, such as hardness, friction, wear resistance, and corrosion resistance, without modifying the properties of the substrate. The most important properties of the coating are hot hardness, good adhesion to the substrate, and chemical stability. In this sense, many coating systems comply with these characteristics, such as type III hard anodizing; APS, HVAF, and HVOF systems; CVD and PVD, etc.

This Special Issue, titled “Corrosion and Protection with Hard Coatings”, will collect papers on the fabrication, characterization, and simulation of and technological advances in coatings regarding corrosion resistance, hardness, friction, and wear resistance. Topics of interest include, but are not limited to, the following:

  • Novel hard coating materials;
  • Deposition techniques and process optimization for enhanced corrosion resistance;
  • Characterization of coating microstructure, mechanical properties, and corrosion behavior;
  • Surface modification and pre-treatment strategies to improve coating adhesion and performance;
  • Performance evaluation of hard coatings in specific corrosive environments (e.g., marine, high-temperature, acidic);
  • Modeling and simulation of corrosion processes in coated systems;
  • Applications of hard coatings in industries such as aerospace, automotive, biomedical, and energy.

Prof. Dr. José A. Cabral-Miramontes
Prof. Dr. Facundo Almeraya-Calderón
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. Applied Sciences 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 2400 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

  • hard coatings
  • hardness
  • wear
  • corrosion
  • friction
  • tribo-corrosion

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Published Papers (2 papers)

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Research

18 pages, 2942 KiB  
Article
Comparative Method Between Eddy Current and Optical Microscopy in the Determination of Thickness of 6063 Aluminum Alloy Anodization
by Jose Cabral-Miramontes, Citlalli Gaona-Tiburcio, Erick Maldonado-Bandala, Daniel Vera Cervantes, Demetrio Nieves-Mendoza, Ce Tochtli Mendez-Ramirez, Maria Lara-Banda, Miguel Angel Baltazar-Zamora, Javier Olguin-Coca and Facundo Almeraya-Calderon
Appl. Sci. 2025, 15(16), 9025; https://doi.org/10.3390/app15169025 - 15 Aug 2025
Abstract
This study compares the Eddy current technique and optical microscopy for measuring the anodized layer thickness in a 6063 aluminum alloy with the aim of establishing an efficient and accurate methodology capable of delivering optimal results in a time-efficient manner. Optical microscopy was [...] Read more.
This study compares the Eddy current technique and optical microscopy for measuring the anodized layer thickness in a 6063 aluminum alloy with the aim of establishing an efficient and accurate methodology capable of delivering optimal results in a time-efficient manner. Optical microscopy was used as the reference method, with five measurements taken in different fields for each specimen. The Eddy current method was applied using two calibration strategies: one calibration before each measurement and another after every ten specimens. The Bland–Altman analysis was employed to compare both measurement techniques. The results indicated that the calibration before each measurement strategy using Eddy current showed higher agreement with the reference method, suggesting that both techniques can be considered equivalent and interchangeable. Furthermore, the Eddy current method demonstrated significant advantages in detecting thickness variations along the specimen, revealing non-uniform distribution of the anodized layer. This method also proved to be faster and eliminated the need for metallographic preparation required by optical microscopy, thus significantly reducing analysis time and cost. In conclusion, the Eddy current method with calibration before each measurement strategy is proposed as an effective alternative for measuring anodized layer thickness in applications where speed and precision are critical. Full article
(This article belongs to the Special Issue Corrosion and Protection with Hard Coatings)
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16 pages, 6331 KiB  
Article
Comprehensive Study of the Mechanical and Tribological Properties of NiCr-Al Detonation Coatings
by Zhuldyz Sagdoldina, Bauyrzhan Rakhadilov, Meruyert Maulet, Laila Sulyubayeva, Cezary Drenda and Sanzhar Bolatov
Appl. Sci. 2025, 15(13), 7513; https://doi.org/10.3390/app15137513 - 4 Jul 2025
Viewed by 303
Abstract
This article presents a comprehensive study of the mechanical and tribological properties of detonation coatings in the NiCr-Al system. Using the detonation spraying technology, NiCr-Al homogeneous (HC) and gradient coatings (GCs) were produced, and their characteristics were determined. Modern analytical instruments were used [...] Read more.
This article presents a comprehensive study of the mechanical and tribological properties of detonation coatings in the NiCr-Al system. Using the detonation spraying technology, NiCr-Al homogeneous (HC) and gradient coatings (GCs) were produced, and their characteristics were determined. Modern analytical instruments were used in the course of the study. The results showed that the microhardness of the NiCr-Al GC was approximately 30% higher compared to the NiCr-Al HC. According to nanoindentation results, the elasticity modulus and nanohardness of the NiCr-Al GC were twice as high as those of the NiCr-Al homogeneous coating. Tribological tests conducted using the rotational ball-on-disk contact geometry showed that the wear rate of the NiCr-Al GC was significantly lower, while the friction coefficients of both coatings were approximately similar. According to the adhesion strength tests, the strength of the NiCr-Al GC was recorded at 38.7 ± 6.9 MPa, while that of the NiCr-Al HC was approximately 25.4 ± 3.1 MPa. High-temperature tribological tests revealed that the wear resistance of the NiCr-Al GC was 2.5 times higher than that of the NiCr-Al HC. The conducted studies demonstrated that the coating structure, particularly the distribution of elements, has a significant influence on its mechanical and tribological properties. Overall, the NiCr-Al GC exhibited superior mechanical and tribological performance. Full article
(This article belongs to the Special Issue Corrosion and Protection with Hard Coatings)
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