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Advances in Wear-Resistant Coatings
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Advances in Wear-Resistant Coatings

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

Deadline for manuscript submissions: 31 December 2025 | Viewed by 9599

Special Issue Editors

Dr. Hui Liang

E-Mail Website
Guest Editor
School of Physics and Electronic Technology, Liaoning Normal University, Dalian, China
Interests: coatings; high-entropy alloys; microstructure; tribology performance
Prof. Dr. Zhiqiang Cao

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Dalian University of Technology, Dalian, China
Interests: high-entropy alloy coatings; synchrotron radiation characterization of metal matrix composites and solidification microstructure control of nonferrous metals

Special Issue Information

Dear Colleagues,

Wear-resistant coatings have important advantages over low friction coefficients, large load bearing capacities, wide temperature ranges, and so on. In recent years, significant progress has been made in the development of wear-resistant coatings for protecting materials in various environments (seawater, dryness, and high temperatures), such as advanced composite material coatings, new high-entropy alloy coatings, conversion coatings, and plasma coatings. Coating preparation technology has also reached a new level, such as new electrochemical and chemical conversion methods, sol–gel methods, plasma-enhanced growth, laser strengthening, etc. Exploring new coating materials, including alloys, polymers, ceramics, composites, and nanostructured materials, has facilitated the discovery of multifunctional coatings for applications in aerospace, civil machinery, and other fields.

This scope of this Special Issue will include, but is not limited to, the following fundamental and applied research topics:

  • Research developments in new organic, inorganic, and composite coatings;
  • Coating technology and processes: sol–gel, hydrothermal, laser, plasma, thermal spray, electroplating, chemical deposition, physical vapor deposition, chemical vapor deposition, chromating, fluorozirconating, fluorotitanating, phosphating, bluing, black oxide coating formation, anodizing, etc.;
  • Dry-wear-resistant coatings;
  • High-temperature wear-resistant coatings;
  • Wear-corrosion-resistant coatings;
  • Wear mechanisms in dry conditions, corrosive liquids, high temperatures, etc.;
  • Test methods for determining the wear-resistant levels of coatings in various environments;
  • The modeling and simulation of coating processing and wear;
  • Nanostructured composite coatings and wear characterization.

Dr. Hui Liang
Prof. Dr. Zhiqiang Cao
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-resistant coatings
  • polymers, ceramics, alloys, and composite coatings
  • nanostructured coating modeling and simulation
  • coating processes
  • tribological mechanism of coatings

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

Published Papers (5 papers)

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Research

14 pages, 12006 KiB  
Article
Effects of Adding Al/Fe Content on the Wear Properties in CoCrNi Medium-Entropy Alloy Coatings Deposited by Laser Cladding
by Jianyan Xu, Wenping Liang, Qiang Miao, Rutong Wan, Yuanyuan Sun, Jinchuan Wen, Jiayao Yu and Shi Yang
Coatings 2025, 15(3), 320; https://doi.org/10.3390/coatings15030320 - 10 Mar 2025
Viewed by 952
Abstract
CoCrNi medium-entropy alloy (MEA) coatings prepared using laser cladding (LC) with unique properties have aroused great interest in recent years and have been widely studied. However, limited studies have been conducted on the effect of adding Al/Fe on the wear properties of CoCrNi [...] Read more.
CoCrNi medium-entropy alloy (MEA) coatings prepared using laser cladding (LC) with unique properties have aroused great interest in recent years and have been widely studied. However, limited studies have been conducted on the effect of adding Al/Fe on the wear properties of CoCrNi MEA coatings prepared on the surface of stainless steel. In this study, AlCoCrFeNi, CoCrFeNi, and CoCrNi MEA LC coatings were prepared on a stainless steel substrate. The grain structures and microscopic morphologies of coatings were characterized, and the wear mechanisms were analyzed using the nano-indentation and wear tests. The hardness-strengthening mechanism was theoretically investigated using phase diagrams and molecular dynamics (MD). The phase diagram results show that the addition of Al lowered the nucleation initiation temperature, thereby increasing the nucleation rate and forming more grains. Moreover, according to the Voronoi volumes and mean–square atomic displacements (MASD) results using MD, the addition of Al makes the appearance of severe localized lattice distortions, while the addition of Fe tends to form short-range ordered structures. In summary, fine-grain strengthening and the hardness strengthening caused by local lattice distortion were the main strengthening mechanisms of AlCoCrFeNi. These findings are highly significant for expanding the application potential and provide profound insights into the wear properties of the CoCrNi MEA coatings. Full article
(This article belongs to the Special Issue Advances in Wear-Resistant Coatings)
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14 pages, 12546 KiB  
Article
Increasing Wear Resistance of Ploughshare by Electrofriction Treatment
by Zhuldyz Sagdoldina, Daryn Baizhan, Nurbol Berdimuratov, Malgorzata Rutkowska-Gorczyca, Meruert Maulet and Sanzhar Bolatov
Coatings 2024, 14(12), 1529; https://doi.org/10.3390/coatings14121529 - 4 Dec 2024
Cited by 1 | Viewed by 1197
Abstract
Surface layers of agricultural machinery working bodies are subjected to intensive abrasive wear during operation, which leads to rapid wear of equipment and reduction of its service life. To increase the wear resistance of the working surfaces of tools, the method of induction [...] Read more.
Surface layers of agricultural machinery working bodies are subjected to intensive abrasive wear during operation, which leads to rapid wear of equipment and reduction of its service life. To increase the wear resistance of the working surfaces of tools, the method of induction cladding using ‘Sormait-1’ materials is widely used. However, after coating, additional heat treatment is required, which improves physical and mechanical properties of the material and increases its durability. When using electrofriction technology (EFT) hardening, the surface of the parts is subjected to melting under the influence of electric arcs, which affects the surface characteristics of the coatings. In this work, two types of surface treatment of L53 steel were investigated: induction cladding using ‘Sormait-1’ material, as well as a combination of induction cladding and subsequent electrofriction treatment. The coatings were characterized and compared with the substrate in terms of the following parameters: microstructure, phase composition, hardness distribution, and friction-wear characteristics. After induction cladding of the Sormait-1 material, a dendritic structure was formed; however, subsequent electrofriction treatment resulted in a reduction of this dendritic structure, which contributed to an increase in the hardness of the material. The average hardness of the coatings after electrofriction treatment was 786 HV0.1, which is more than three times the hardness of the substrate. Furthermore, the influence of structural characteristics and hardness on abrasive wear resistance was examined in accordance with ASTM G65 international standards. Field tests were conducted on plough shares before and after electrofriction hardening to evaluate their performance. Each ploughshare was scanned with a structured 3D scanner before and after use in the field. From the scan data, the cutting-edge profile was calculated and three key parameters were determined: linear wear, volumetric wear, and mass reduction. According to the results of field tests, it was found that the service life of the blades hardened by electrofriction technology was 12%–14% higher compared to serial blades processed by induction cladding with the use of ‘Sormait-1’ material. Operational tests of hardened plough shares confirmed the results of laboratory tests and proved the advantages of electrofriction technology for increasing the wear resistance of soil tillage machine working bodies. Full article
(This article belongs to the Special Issue Advances in Wear-Resistant Coatings)
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13 pages, 4630 KiB  
Article
Effect of Rare Earth Y on the Microstructure, Mechanical Properties and Friction of Sn-Babbitt Alloy
by Xiaoyan Ren, Yuan Chang, Shengsheng Chen, Ningning Chen, Zhenghua Shi, Yougui Zhang, Huimin Chen, Zhiming Guo, Jinzhi Hu, Guowei Zhang and Hong Xu
Coatings 2024, 14(10), 1325; https://doi.org/10.3390/coatings14101325 - 16 Oct 2024
Cited by 1 | Viewed by 1416
Abstract
Babbitt alloy is a bearing material with excellent properties, including good anti-friction wear resistance, embeddedness, corrosion, and compliance, as well as sufficient bearing capacity. However, with the development of engines to have high speed and heavy load, the use of Babbitt alloy as [...] Read more.
Babbitt alloy is a bearing material with excellent properties, including good anti-friction wear resistance, embeddedness, corrosion, and compliance, as well as sufficient bearing capacity. However, with the development of engines to have high speed and heavy load, the use of Babbitt alloy as a bearing material exposes its weaknesses of low bearing capacity, insufficient fatigue strength and a sharp decline in mechanical properties with an increase in working temperature. Therefore, its application scope is gradually narrowed and subject to certain limitations. Improving the tensile strength and wear resistance of tin-based Babbitt alloy is of great significance to expanding its application. In this study, tin-based Babbitt alloy was taken as the main research object; the particle size, microstructure, mechanical properties, and friction were systematically studied after the single addition of Y-Cu composite in tin-based Babbitt alloy liquid. The wear performance and the strengthening, toughening and wear mechanisms of tin-based Babbitt alloy were investigated under the action of Y in order to prepare a high-performance tin-based Babbitt alloy for bimetallic bearing. It was found that when rare-earth Y was added to the Babbitt alloy body, the wear properties were greatly improved. Full article
(This article belongs to the Special Issue Advances in Wear-Resistant Coatings)
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10 pages, 3330 KiB  
Article
Microstructure and Dry-Sliding Wear Resistance of CoCrFeNiMoTix High Entropy Alloy Coatings Produced by Laser Cladding
by Hui Liang, Jinxin Hou, Li Jiang and Zhiqiang Cao
Coatings 2024, 14(2), 221; https://doi.org/10.3390/coatings14020221 - 12 Feb 2024
Cited by 6 | Viewed by 3314
Abstract
The new-type CoCrFeNiMoTix high-entropy alloy coatings were successfully devised and prepared on Q235 steel using laser cladding. Influence of Ti content on their microstructure and wear-resistance was studied systematically; the relevant mechanisms were deeply revealed. The CoCrFeNiMoTix coatings consisted of NiTi, [...] Read more.
The new-type CoCrFeNiMoTix high-entropy alloy coatings were successfully devised and prepared on Q235 steel using laser cladding. Influence of Ti content on their microstructure and wear-resistance was studied systematically; the relevant mechanisms were deeply revealed. The CoCrFeNiMoTix coatings consisted of NiTi, FCC, and BCC phases, and with the increasing of Ti content, contents of BCC phase and FCC phase gradually increased and decreased, respectively. The CoCrFeNiMoTi0.75 coating had the highest hardness (950 HV), which was about 6.5 times higher than the substrate (Q235 steel, 150 HV). According to Archard law, metal materials’ wear resistance is generally proportional to hardness; thus, the CoCrFeNiMoTi0.75 high entropy alloy coating with the highest hardness showed the best wear resistance, exhibiting a wear mechanism of slight abrasive wear. Full article
(This article belongs to the Special Issue Advances in Wear-Resistant Coatings)
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9 pages, 2740 KiB  
Article
Optimization of the Forming Quality of a Laser-Cladded AlCrFeNiW0.2 High-Entropy Alloy Coating
by Hui Liang, Jianhong Liu, Likun Sun, Jinxin Hou and Zhiqiang Cao
Coatings 2023, 13(10), 1744; https://doi.org/10.3390/coatings13101744 - 9 Oct 2023
Cited by 5 | Viewed by 1745
Abstract
Laser cladding is an effective surface strengthening method widely used in the surface treatment of extreme operating components such as gas turbines, aviation engines, and nuclear facilities. However, traditional cladding layers struggle to meet the diverse application needs of extreme working conditions due [...] Read more.
Laser cladding is an effective surface strengthening method widely used in the surface treatment of extreme operating components such as gas turbines, aviation engines, and nuclear facilities. However, traditional cladding layers struggle to meet the diverse application needs of extreme working conditions due to their single cladding material and poor forming quality. Therefore, this article selected the new-type high-entropy alloy as the coating material and optimized its laser cladding process parameters in order to obtain an AlCrFeNiW0.2 high-entropy alloy coating with an excellent forming quality. It was found that as the laser power increased from 300 to 1800 W, the AlCrFeNiW0.2 high-entropy alloy coating transitioned from the incomplete or near-melted state to the fully and over-melted state gradually, while the coating showed the opposite trend of change as the laser scanning speed increased from 0.002 to 0.008 m/s. And when the laser power was 1000 W, the scanning speed was 0.005 m/s, and the spot diameter was 0.003 m, the AlCrFeNiW0.2 high-entropy alloy coating with a low dilution rate (9.95%) had no defects such as pores and cracks, and achieved good metallurgical bonding with Q235 steel substrate, demonstrating excellent forming quality. These could provide valuable theoretical and technical guidance for optimizing the laser cladding process and forming quality of new-type high-entropy alloy coatings. Full article
(This article belongs to the Special Issue Advances in Wear-Resistant Coatings)
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