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Coatings
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Tribological Coatings: Properties, Mechanisms, and Applications in Surface Engineering
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Tribological Coatings: Properties, Mechanisms, and Applications in Surface Engineering

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Tribology".

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 7574

Special Issue Editors

Prof. Dr. Suzana Jakovljević

E-Mail Website
Guest Editor
Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lucica Street, No. 5, University of Zagreb, 10000 Zagreb, Croatia
Interests: tribology coatings; wear and surface engineering; material characterization
Prof. Dr. Darko Landek

E-Mail Website
Guest Editor
Department of Materials, Faculty of Mechanical Engineering and Naval Arhitecture, Ivana Lucica Street, No. 5, University of Zagreb, 10000 Zagreb, Croatia
Interests: heat treatment; surface engineering; PVD coatings; PACVD coatings; wear; modeling and simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Tribological coating technology is changing rapidly to keep pace with advanced coatings materials and applications. Performance demands on all types of coatings materials are continuously increasing. The conventionally required coating characteristics are to protect against wear and corrosion, to minimize friction, and to extend the life of the product. The modern development of tribological coatings expands their characteristics with additional requirements for monitoring the condition and wear of the coating, for the installation of functional or self-healing layers in the coating, etc. These requirements are achieved by developing new duplex processes, nanostructuring methods, and innovative improvements of conventional processes, such as nitriding, surface hardening, carburizing, boriding, physical vapour deposition, chemical vapour deposition, plasma-assisted chemical vapour deposition, ion implantation, plasma spraying, laser cladding, etc.

In this Special Issue, original research articles and reviews are welcome. Research areas may include, but are not limited to, the following:

  • Properties of tribological coatings;
  • Influence of surface treatment on its degradation mechanisms;
  • New and combined surface treatment methods;
  • Experimental and processing high-performance coatings with exposure to wear on high temperatures, high stress, and other extreme environment applications;
  • Coating characterizations research;
  • Modeling methods for predicting of deposition or wear of coatings;
  • Recent developments in duplex, multi-functional, and hybrid tribological coatings.

We look forward to receiving your contributions.

Prof. Dr. Suzana Jakovljević
Prof. Dr. Darko Landek
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

  • wear
  • tribological coatings
  • coating characterisation
  • mechanical and tribological properties
  • surface engineering

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Published Papers (4 papers)

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Editorial

Jump to: Research

3 pages, 176 KiB  
Editorial
Special Issue: Tribological Coatings—Properties, Mechanisms, and Applications in Surface Engineering
by Suzana Jakovljević and Darko Landek
Coatings 2023, 13(2), 451; https://doi.org/10.3390/coatings13020451 - 16 Feb 2023
Cited by 1 | Viewed by 1402
Abstract
Tribological coatings are found on machine elements (e [...] Full article
(This article belongs to the Special Issue Tribological Coatings: Properties, Mechanisms, and Applications in Surface Engineering)

Research

Jump to: Editorial

16 pages, 7274 KiB  
Article
Low-Stress Abrasion of Novel Ni-P-Tribaloy Composite Coating
by Ahmed Mabrouk, Zoheir Farhat and Md. Aminul Islam
Coatings 2023, 13(9), 1647; https://doi.org/10.3390/coatings13091647 - 20 Sep 2023
Viewed by 1329
Abstract
Degradation of industrial machinery through wear can be mitigated with the deposition of protective coatings to reduce maintenance costs and prolong their service lifespans. Electroless nickel-based composite coatings is one possible method used to provide this protection. The addition of Tribaloy (CoMoCrSi alloy) [...] Read more.
Degradation of industrial machinery through wear can be mitigated with the deposition of protective coatings to reduce maintenance costs and prolong their service lifespans. Electroless nickel-based composite coatings is one possible method used to provide this protection. The addition of Tribaloy (CoMoCrSi alloy) particles has been found to produce composite coatings with high toughness. In this work, electroless Ni-P-Tribaloy composite coatings were plated on AISI 1018 steel substrates and subjected to low-stress abrasion tests following ASTM G65 standards to investigate the abrasion of the coating. The test was performed at 10 revolution increments, with a 45 N applied load, until coating failure was observed and the measured abrasion was reported as volume loss. The two Ni-P-Tribaloy coating samples lasted for 90 and 100 revolutions, exhibiting a wear rate of 0.170 mm3 per revolution, compared to 0.135 mm3 per revolution for the Ni-P coatings. The abrasive wear mechanism in the Ni-P-Tribaloy coating was found to be plowing of the matrix around the Tribaloy particles, followed by the removal of the particles once they are protruding, which subsequently contributes to the three-body wear of the coating. The particle removal was accelerated at the coating particle-matrix interface. It is concluded that the size of the Tribaloy is a major factor, and we recommend that further studies be carried out using finer particles to improve the wear resistance of the Ni-P-Tribaloy coating. Full article
(This article belongs to the Special Issue Tribological Coatings: Properties, Mechanisms, and Applications in Surface Engineering)
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24 pages, 6641 KiB  
Article
Research and Optimization of the Influence of Process Parameters on Ti Alloys Surface Roughness Using Femtosecond Laser Texturing Technology
by Dragutin Lisjak, Suzana Jakovljević and Hrvoje Skenderović
Coatings 2023, 13(7), 1180; https://doi.org/10.3390/coatings13071180 - 30 Jun 2023
Cited by 1 | Viewed by 1326
Abstract
One of the major disadvantages of Ti alloys is their poor wear resistance. To increase their wear resistance, before applying a wear-resistant layer, the surface of the substrate should be carefully prepared to ensure the required coating adhesion. Femtosecond laser (fs) texturing is [...] Read more.
One of the major disadvantages of Ti alloys is their poor wear resistance. To increase their wear resistance, before applying a wear-resistant layer, the surface of the substrate should be carefully prepared to ensure the required coating adhesion. Femtosecond laser (fs) texturing is a technology that can be used for surface texturing of Ti alloys because it enables a controlled heat input on a small surface area. The process of laser texturing is very sensitive to the choice of input parameters, such as the number of passes (P) and laser power (W), the choice of which may significantly influence the ultimate surface roughness values (Ra). It cannot be expected that by using the fs process a given default Ra value will be achieved, but it is assumed that the obtained roughness values will be within the given interval. As a result of this research with a significance level of 95% using a design of experiments (DOE) and Monte Carlo simulations, a general linear model of Ra = f (P, W) and optimal input parameter intervals (P and W) of laser texturing were obtained both for the given interval as well as for the default surface roughness value (Ra). Considering that an industrial process is involved here, a process performance capability index (Cpk) has been also defined, which shows that optimal process parameter intervals give roughness values for the given interval or given default roughness value. Full article
(This article belongs to the Special Issue Tribological Coatings: Properties, Mechanisms, and Applications in Surface Engineering)
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15 pages, 9578 KiB  
Article
Impact Abrasive Wear Resistance of CrN and CrAlN Coatings
by Ying Luo, Chuangming Ning, Yuanyuan Dong, Cong Xiao, Xiaotong Wang, Hang Peng and Zhenbing Cai
Coatings 2022, 12(4), 427; https://doi.org/10.3390/coatings12040427 - 23 Mar 2022
Cited by 11 | Viewed by 2658
Abstract
The impact wear resistance of the hard coating is very important in the high-temperature environment of the nuclear power plant. CrN and CrAlN coatings were prepared using multi-arc ion plating. The impact abrasive wear resistance of the coatings was investigated at varied temperatures [...] Read more.
The impact wear resistance of the hard coating is very important in the high-temperature environment of the nuclear power plant. CrN and CrAlN coatings were prepared using multi-arc ion plating. The impact abrasive wear resistance of the coatings was investigated at varied temperatures through a controlled kinetic energy impact wear rig, and their impact mechanism was elucidated. No extensive spalling was found on the surface of the CrN and CrAlN coatings after 104 impacts under the no-sand condition. The excellent antioxidant properties of the CrN and CrAlN coatings can protect the substrate from oxidation under the no-sand condition at 500 °C. The impact mechanism of the two coatings was plastic deformation under the no-sand condition, and it was mainly material removal under the sand condition. The depth and width of wear scar were larger under the sand condition than under the no-sand condition. The impact wear region was divided into a mixed impact zone and a sand impact zone. Compared with the CrN coating, the CrAlN coating had lower impact force and shallower impact wear scar, proving that it has better anti-impact wear properties. Full article
(This article belongs to the Special Issue Tribological Coatings: Properties, Mechanisms, and Applications in Surface Engineering)
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