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Lubricants
Special Issues
Tribological Properties of Sprayed Coatings
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Tribological Properties of Sprayed Coatings

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: 28 February 2025 | Viewed by 1691

Special Issue Editors

Dr. Hao Lan

E-Mail Website
Guest Editor
Ganjiang Innovation Academy, Chinese Academy of Science, Ganzhou 341119, China
Interests: surface engineering; corrosion; wear-resistant coating
Dr. Hao Lin

E-Mail Website
Guest Editor
Shandong Laborary of Yantai Advanced Materials and Green Manufacturing, Yantai 264003, China
Interests: thermal spray; ceramic coating; corrosion; tribology
Dr. Fengkun Li

E-Mail
Guest Editor
College of Energy and Machinery, Dezhou University, Dezhou 253023, China
Interests: ceramic coating; corrosion; tribology

Special Issue Information

Dear Colleagues,

The tribological properties of sprayed coatings are paramount in industrial applications, as they are instrumental in minimizing friction and wear on mechanical components, which, in turn, enhances operational efficiency, reduces maintenance costs, and extends the service life of machinery. In addition to reducing wear, many sprayed coatings also provide a barrier against corrosion, further extending the life of the components. These coatings act as a protective layer, often in harsh operating conditions, to prevent premature failure and ensure the reliability of equipment, thereby significantly contributing to the sustainability and economic viability of industrial processes. Progress has been made in tailoring sprayed coatings to meet the specific tribological needs of various industries, from automotive to aerospace. In summary, the tribological properties of sprayed coatings are essential for the reliability and longevity of mechanical systems. Ongoing research and development are leading to improved materials, application techniques, and a deeper understanding of how these coatings interact with their environment, which will continue to enhance their performance and applicability in the future. This Special Issue will focus on the latest developments in the preparation of wear-resistant coatings using spray technology. We expect these studies to provide advanced coating systems in the future to face harsh application environments.

Dr. Hao Lan
Dr. Hao Lin
Dr. Fengkun Li
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. Lubricants 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

  • thermal spray
  • cold spray
  • coating
  • tribological properties
  • wear resistance
  • wear mechanisms

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Published Papers (2 papers)

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Research

13 pages, 5714 KiB  
Article
Fabrication and Tribology Properties of PTFE-Coated Cemented Carbide Under Dry Friction Conditions
by Shoujun Wang, Wenlong Song, Lei An, Zixiang Xia and Shengdong Zhang
Lubricants 2024, 12(11), 363; https://doi.org/10.3390/lubricants12110363 - 23 Oct 2024
Viewed by 459
Abstract
PTFE coatings were deposited on YT15 carbide substrates using spray technology. A series of examinations were conducted, including the use of surface and cross-section micrographs to analyze the structural integrity of the coatings. The surface roughness, the adhesion force between the PTFE coatings [...] Read more.
PTFE coatings were deposited on YT15 carbide substrates using spray technology. A series of examinations were conducted, including the use of surface and cross-section micrographs to analyze the structural integrity of the coatings. The surface roughness, the adhesion force between the PTFE coatings and the carbide substrate, and the micro-hardness of the coated carbide were also evaluated. Additionally, the friction and wear behaviors were assessed through dry sliding friction tests against WC/Co balls. The test results indicated that while the PTFE-coated carbide exhibited a rougher surface and reduced micro-hardness, it also demonstrated a significant reduction in surface friction and adhesive wear. These findings suggest that the PTFE coatings enhance the overall wear resistance of the carbides. The lower surface hardness and shear strength of the coatings influenced the friction performance, leading to specific wear failure mechanisms, such as abrasion wear, coating delamination, and flaking. Overall, the deposition of PTFE coatings on carbide substrates presents a promising strategy to enhance their friction and wear performance. This approach not only improves the durability of carbide materials but also offers potential applications in industries where reduced friction and wear are critical for performance. Full article
(This article belongs to the Special Issue Tribological Properties of Sprayed Coatings)
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13 pages, 18409 KiB  
Article
A Comparison of the Tribological Properties of SiC Coatings Prepared via Atmospheric Plasma Spraying and Chemical Vapor Deposition for Carbon/Carbon Composites
by Yan Qi, Jiumei Gao, Wenping Liang, Qiang Miao, Feilong Jia, Xiangle Chang and Hao Lin
Lubricants 2024, 12(9), 301; https://doi.org/10.3390/lubricants12090301 - 26 Aug 2024
Viewed by 951
Abstract
The microstructure, mechanical performance, and tribological properties of SiC ceramic coatings prepared via atmospheric plasma spraying (APS) and chemical vapor deposition (CVD) method were compared to provide good anti-wear protection for carbon/carbon composites. The surface morphology of the APS-SiC coating was characterized as [...] Read more.
The microstructure, mechanical performance, and tribological properties of SiC ceramic coatings prepared via atmospheric plasma spraying (APS) and chemical vapor deposition (CVD) method were compared to provide good anti-wear protection for carbon/carbon composites. The surface morphology of the APS-SiC coating was characterized as having a porous structure, whilst the CVD-SiC coating presented with many pyramidal-shaped crystals constituting the surface. The APS-SiC coating consists of a dominating SiC phase and a small fraction of the Si phase, while the XRD pattern of the CVD-SiC coating mainly consists of the SiC phase. The dense crystalline microstructure of the CVD-SiC coating made it possess a higher hardness and Young’s modulus at 31.0 GPa and 275 GPa, respectively. The higher H/E and H3/E2 parameters of the CVD-SiC coating implied that it exhibited better plastic resistance, which is also beneficial for anti-wear properties. The scratch test reflected the critical loads of the spallation of the APS-SiC coating and CVD-SiC coating, which were evaluated to be 25.9 N and 36.4 N, respectively. In the tribological test, the friction coefficient of the APS-SiC coating showed obvious fluctuations at high load due to damage to the SiC coating. The wear mechanism of the APS-SiC coating was dominated by abrasive wear and fatigue wear, while CVD-SiC was mainly dominated by abrasive wear. The wear rate of the CVD-SiC coating was far below that of the APS-SiC coating, suggesting the better wear-resistance of the CVD-SiC coating. Full article
(This article belongs to the Special Issue Tribological Properties of Sprayed Coatings)
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