Tribomechanical and Corrosion Tests for Advanced Surface Characterization

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

Deadline for manuscript submissions: 30 April 2025 | Viewed by 2300

Special Issue Editor


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Guest Editor
Institute for Advanced Materials and Mathematics (INAMAT2), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
Interests: thin films; nanostructured coatings; tribology; PVD; ion implantations; plasma immersion ion implantation; advanced alloys
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Special Issue Information

Dear Colleagues,

The advances in thin coatings seen in recent years, as well as the design of coating structures, make it necessary to make an effort to research new strategies for tribomechanical characterization and corrosion resistance.

On the other hand, the demand for new functionalities, and in some cases multifunctionalities for the coatings, reinforces the need to develop specific characterization strategies.

This Special Issue aims to promote aspects related to nanoindentation, scratching, friction and wear tests, as well as corrosion resistance of thin layers or surface modifications and the use of artificial intelligence and computational methods for the design of coatings and tailored surface treatments.

  • Advanced surface characterization techniques;
  • Development and new applications of nanostructured coatings using PVD, CVD, and plasma spraying techniques;
  • Coatings resistant to high temperatures and oxidation, with special attention given to energy and chemical applications;
  • Applications and new developments of nanostructured coatings for tribological applications.

This Special Issue acknowledges the contribution of Dr. Adrián.

Dr. Jose Antonio García
Guest Editor

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Keywords

  • tribology
  • PVD
  • SolGel
  • ion implantation
  • corrosion

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Published Papers (2 papers)

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Research

14 pages, 6613 KiB  
Article
Erosion Performance of TiN/Ti Coatings under Different Nitrogen Flow Rates
by Yuxin Ren, Zhaolu Zhang, Guangyu He, Yan Chai, Yanli Zhang and Zilei Zhang
Coatings 2024, 14(9), 1144; https://doi.org/10.3390/coatings14091144 - 5 Sep 2024
Viewed by 544
Abstract
This study employed magnetic filtered cathodic vacuum arc deposition to fabricate TiN/Ti multilayer coatings, examining the impact of nitrogen flow rates—4, 8, 12, and 16 sccm—on their performance, with an emphasis on gradient flow rates from 4 to 12 sccm. The coatings’ phase [...] Read more.
This study employed magnetic filtered cathodic vacuum arc deposition to fabricate TiN/Ti multilayer coatings, examining the impact of nitrogen flow rates—4, 8, 12, and 16 sccm—on their performance, with an emphasis on gradient flow rates from 4 to 12 sccm. The coatings’ phase composition shifted from TiN0.26 to a Ti2N and TiN composite, optimizing the microstructure and significantly increasing the hardness to 24.37 GPa and the elastic modulus to 219.84 GPa at the 16 sccm rate. The surface roughness reduction further improved erosion resistance. Coatings made under gradient flow exhibited reduced mass loss and an erosion rate of 0.07 mg·g−1, outperforming single flow rates. Erosion failure analysis highlighted that while 12 sccm coatings failed due to extensive crack interconnection, 16 sccm coatings showed spalling from crack expansion. Gradient flow coatings, despite the presence of a crack, demonstrated a more confined damage area and enhanced erosion resistance, indicating the benefits of varied nitrogen flow rates in coating optimization. Full article
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23 pages, 5854 KiB  
Article
Corrosion and Tribological Performance of Diamond-like Carbon-Coated ZK 60 Magnesium Alloy
by Adrián Claver, Iván Fernández, José Antonio Santiago, Pablo Díaz-Rodríguez, Miguel Panizo-Laiz, Joseba Esparza, José F. Palacio, Gonzalo G. Fuentes, Iñaki Zalakain and José Antonio García
Coatings 2023, 13(11), 1871; https://doi.org/10.3390/coatings13111871 - 31 Oct 2023
Cited by 2 | Viewed by 1401
Abstract
In this work, hydrogenated and hydrogen-free Diamond-Like Carbon (DLC) coatings were deposited into ZK60 magnesium alloy using the promising coating method High-Power Impulse Magnetron Sputtering (HiPIMS). CrC and WC were used as interlayers of the thin films, and their influence was studied. The [...] Read more.
In this work, hydrogenated and hydrogen-free Diamond-Like Carbon (DLC) coatings were deposited into ZK60 magnesium alloy using the promising coating method High-Power Impulse Magnetron Sputtering (HiPIMS). CrC and WC were used as interlayers of the thin films, and their influence was studied. The structure and composition of the coatings were characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Raman spectroscopy. Tribological tests, scratch tests, and nanoindentation were performed to obtain information about the mechanical and tribological properties of the coatings. Finally, immersion and electrochemical tests were performed to evaluate the corrosion behavior of the samples. The results showed a homogeneous layer with improved wear resistance, toughness, and hardness in addition to good adhesion to the substrate of the ZK60 magnesium alloy. The hydrogenated DLC coating showed better results that the hydrogen-free thin layer, and relevant differences were observed depending on the interlayer. In this work, the improvement in the tribological and corrosive properties of Mg alloys was studied by using thin layers of DLC and different intermediate layers, achieving similar or even better wear and adhesion values than with thicker layers. Full article
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