Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5
3.4
Journals
Coatings
Special Issues
Anti-wear Coatings for High Temperature Applications
share announcement

Anti-wear Coatings for High Temperature Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 16136

Special Issue Editors

Prof. Dr. Jun Yang

E-Mail Website
Guest Editor
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Interests: high-temperature tribology; solid lubrication; coatings; metal–matrix composites; ceramics; powder metallurgy
Dr. Jun Cheng

E-Mail Website
Guest Editor
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Interests: high-temperature tribology; coatings; metal–matrix composites; ceramics; liquid metal; powder metallurgy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Friction and wear at high temperature is an ongoing challenge for mechanical systems in various industries. The development of anti-wear and solid-lubricating coatings is one of the most effective strategies to reduce the friction and wear of mechanical surfaces/interfaces, and thus attracts a great deal of attention from the material and tribology community around the world. With the recent progress in science and technology, there has been a boom in the development of anti-wear coatings, including preparation technologies (spraying, laser melting, magnetron sputtering, etc.), novel design strategies (environment adaption, multilayer structure, etc.) and the varied coating workpieces (from plate to complicated shapes like pipe internal wall). The aim of this Special Issue is to present the state-of-the art of anti-wear coatings, together with innovative fundamental research and applications. These include, but are not limited to:

  • Anti-wear and solid-lubricating coatings;
  • Mechanical and high-temperature tribological properties;
  • Coating preparation technologies and processes;
  • Coating composition and structural design;
  • Environment adaption;
  • Industrial applications.

Prof. Dr. Jun Yang
Dr. Jun Cheng
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

  • Coatings
  • High temperature
  • Anti-wear
  • Solid lubrication
  • Microstructure

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

14 pages, 6137 KiB  
Article
Research of the Thermal Effect on the Fe-Cr-Al Alloy Foil in the Initial State and with the Supported Secondary Carrier
by Bolatbek Khussain, Alexandr Brodskiy, Alexandr Sass, Vladimir Yaskevich, Irina Shlygina, Kenzhegul Rakhmetova, Svetlana Tungatarova and Atabek Khussain
Coatings 2022, 12(9), 1266; https://doi.org/10.3390/coatings12091266 - 30 Aug 2022
Cited by 8 | Viewed by 1185
Abstract
Iron and chromium based alloys have found wide application in various fields of science and technology. A primary carrier based on Fe-Cr-Al alloy is used in block catalysts for high-temperature hydrocarbon conversion, in production of block metal catalysts for neutralization of toxic gases [...] Read more.
Iron and chromium based alloys have found wide application in various fields of science and technology. A primary carrier based on Fe-Cr-Al alloy is used in block catalysts for high-temperature hydrocarbon conversion, in production of block metal catalysts for neutralization of toxic gases released during operation of internal combustion engines, as well as those present in smoke emissions from enterprises. The influence of thermal action on Fe-Cr-Al alloy foil and stability of the secondary carrier on its surface was studied. The elemental composition of the surface layer of Fe-Cr-Al alloy foil does not remain constant during heating and depends on the thermal treatment mode. Some of the elements come to surface and the elemental composition of the surface layer can differ significantly from that observed in the bulk of the foil sample. This implies the possibility of changing the adhesive and adsorption properties of the foil surface, as well as the need to take this fact into account when supporting a secondary carrier and active phase to the foil. An applied technique of phosphating and supporting a secondary carrier at the foil surface makes it possible to obtain a sufficiently stable coating. There is no shedding of the secondary carrier from the foil surface during high-temperature treatment in air. Full article
(This article belongs to the Special Issue Anti-wear Coatings for High Temperature Applications)
►▼ Show Figures

Graphical abstract

15 pages, 14464 KiB  
Article
Effect of TiB2 Content on Properties of Nickel-Coated Graphite Self-Lubricating Coating Prepared by Laser Cladding
by Shanshan Liu and Ming Pang
Coatings 2021, 11(12), 1501; https://doi.org/10.3390/coatings11121501 - 6 Dec 2021
Cited by 10 | Viewed by 3005
Abstract
To improve the anti-wear and friction-reducing properties of self-lubricating coatings, Ni60/Nickel-coated graphite/TiB2 composite coatings with different contents were prepared by laser cladding. The coating properties were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy spectrometer (EDS), electrochemical workstation, micro-Vickers hardness [...] Read more.
To improve the anti-wear and friction-reducing properties of self-lubricating coatings, Ni60/Nickel-coated graphite/TiB2 composite coatings with different contents were prepared by laser cladding. The coating properties were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy spectrometer (EDS), electrochemical workstation, micro-Vickers hardness tester, and friction and wear tester. The results showed that with the increase in TiB2 content, the graphite morphology changed from spherical at 0 wt.% TiB2 content to a little black graphite alone at 14 wt.% TiB2 to irregular agglomerates at 22 wt.% TiB2. Furthermore, the hardness of the coatings increased with increasing TiB2 content, and the 63% Ni60 + 15% nickel-coated graphite + 22% TiB2 coating had the highest hardness. TiC and Cr7C3 were generated in the coatings with the addition of nickel-coated graphite, creating a dispersion reinforcement effect, so that the hardness of these coatings was higher than that of the 86% Ni60 + 0% nickel-coated graphite + 14% TiB2 coating without the addition of nickel-coated graphite. In addition, the 71% Ni60 + 15% Ni-coated graphite + 14% TiB2 coating had the lowest friction coefficient, wear loss, and wear volume, thus exhibiting excellent friction reduction and anti-wear properties. The 71% Ni60 + 15% nickel-coated graphite + 14% TiB2 coating had excellent corrosion resistance. Full article
(This article belongs to the Special Issue Anti-wear Coatings for High Temperature Applications)
►▼ Show Figures

Graphical abstract

12 pages, 4019 KiB  
Article
Defect Formation Mechanism and Performance Study of Laser Cladding Ni/Mo Composite Coating
by Min Sun and Ming Pang
Coatings 2021, 11(12), 1460; https://doi.org/10.3390/coatings11121460 - 28 Nov 2021
Cited by 8 | Viewed by 1847
Abstract
In order to improve the wear resistance of Cu, a Ni/Mo composite coating was applied on the surface of Cu alloy by means of laser cladding. The laser power was 6000 W, the scanning speed was 5 mm/s and the feed rate was [...] Read more.
In order to improve the wear resistance of Cu, a Ni/Mo composite coating was applied on the surface of Cu alloy by means of laser cladding. The laser power was 6000 W, the scanning speed was 5 mm/s and the feed rate was 10 g/min. The transition layer of the Ni layer had three layers, and the surface layer of the Mo layer had two layers. The results showed that the surface of the cladding layer was pure Mo. Due to the fluidity and non-equilibrium solidification of Mo in the molten state, pores and cracks along the grain boundary were observed in the Mo layer. The results showed that the cross-section of cladding layer was divided into a pure Mo layer, Mo-Ni-Cu mixed layer and an Ni-Cu mixed layer. The surface hardness of the Mo layer was 200~460 HV. Ni3Mo was formed at the interface of Mo and Ni. The hardness was improved by Ni3Mo; the maximum hardness was 750 HV. Under the same load and wear time, the wear rate of Cu was three times that of the surface layer. Full article
(This article belongs to the Special Issue Anti-wear Coatings for High Temperature Applications)
►▼ Show Figures

Figure 1

14 pages, 6345 KiB  
Article
Research on Laser Cladding Co-Based Alloy on the Surface of Vermicular Graphite Cast Iron
by Fuzhen Sun, Keqian Cai, Xiaoxu Li and Ming Pang
Coatings 2021, 11(10), 1241; https://doi.org/10.3390/coatings11101241 - 13 Oct 2021
Cited by 9 | Viewed by 2954
Abstract
To further improve the hardness of the laser cladding layer on the surface of the vermicular graphite cast iron, the structural parameters of the laser cladding Co-base were designed and optimized, and the properties of the clad layer were evaluated using optical microscopy [...] Read more.
To further improve the hardness of the laser cladding layer on the surface of the vermicular graphite cast iron, the structural parameters of the laser cladding Co-base were designed and optimized, and the properties of the clad layer were evaluated using optical microscopy (OM), scanning electron microscopy (SEM), energy spectroscopy (EDS), X-ray diffractometer (XRD), electrochemical workstation, and friction wear equipment. The results show that the average hardness of the molten layer of Ni and Co-based composite cladding layer is 504 HV0.5, which is 0.64 times that of the Co-based cladding layer due to the combined factors of Ni-Cr-Fe equivalent to the dilution of the Ni-based cladding layer to the Co-based cladding layer. Due to the potential difference of the Ni, Cr, and Co elements on the surface of the cladding layer, the self-corrosion potential of the Ni and Co-based composite cladding layer is 1.08 times that of the Co-based cladding layer, and the self-corrosion current density is 0.51 times. Laser cladding Co-based cladding layer has high corrosion resistance. Under the influence of plastic deformation and oxidative wear of the cladding layer of the Ni and Co-based composite cladding layer, the wear amount of the cladding layer of the Ni and Co-based composite cladding layer is less. Full article
(This article belongs to the Special Issue Anti-wear Coatings for High Temperature Applications)
►▼ Show Figures

Figure 1

18 pages, 2674 KiB  
Article
Moisture Vapor Resistance of Coated and Laminated Breathable Fabrics Using Evaporative Wet Heat Transfer Method
by Hyun-Ah Kim
Coatings 2021, 11(10), 1157; https://doi.org/10.3390/coatings11101157 - 26 Sep 2021
Cited by 3 | Viewed by 3237
Abstract
This study examined the effects of the fiber materials, fabric structural parameters, and surface modification method on the moisture vapor resistance of coated and laminated fabrics according to the measuring method in comparison with evaporative wet heat transfer method. The moisture vapor resistance [...] Read more.
This study examined the effects of the fiber materials, fabric structural parameters, and surface modification method on the moisture vapor resistance of coated and laminated fabrics according to the measuring method in comparison with evaporative wet heat transfer method. The moisture vapor resistance (Ref) of the coated and laminated fabrics measured using evaporative wet heat transfer method was much more precise than water vapor transmission rate (WVTR) and water vapor permeability (WVP) measured using American Society for Testing and Materials (ASTM) and Japanese Industrial Standard (JIS) methods. The correlation coefficient between Ref and WVTR in the laminated and coated polyethylene terephthalate (PET) fabric specimens was the highest, i.e., −0.833, and −0.715, in coated fabric specimens. Hence, selecting an appropriate measuring method according to the fabric materials and surface modification method is very critical. According to curvilinear regression analysis, the influential factor affecting breathability of the PET fabric specimens measured using evaporative wet heat transfer method was fabric weight (R2 = 0.847) and fabric thickness (R2 = 0.872) in the laminated fabric specimens. Meanwhile, as per multiple linear regression, the most influential fabric structural parameters affecting the breathability of laminated fabric specimens measured using evaporative wet heat transfer method were the fabric density, weight/thickness, and weight followed by the fabric thickness (R2 = 0.943). These results would be valid for laminated breathable fabrics with characteristics within the range of this study and are of practical use for engineering laminated fabrics with high breathability. Full article
(This article belongs to the Special Issue Anti-wear Coatings for High Temperature Applications)
►▼ Show Figures

Figure 1

17 pages, 155349 KiB  
Article
Molecular Dynamics Study on Nano-Friction and Wear Mechanism of Nickel-Based Polycrystalline Superalloy Coating
by Zongxiao Zhu, Hui Wang, Zixuan Qiang, Shi Jiao, Linjun Wang, Min Zheng, Shengyu Zhu, Jun Cheng and Jun Yang
Coatings 2021, 11(8), 896; https://doi.org/10.3390/coatings11080896 - 26 Jul 2021
Cited by 5 | Viewed by 2601
Abstract
In this work, molecular dynamics simulations are employed to study the nanotribological process of nickel-based polycrystalline superalloy coating. A series of simulations were carried out using the method of repeated friction to explore the influence of frictional force, friction coefficient, grinding groove morphology, [...] Read more.
In this work, molecular dynamics simulations are employed to study the nanotribological process of nickel-based polycrystalline superalloy coating. A series of simulations were carried out using the method of repeated friction to explore the influence of frictional force, friction coefficient, grinding groove morphology, wear scar depth, debris flow direction, subsurface damage degree and evolution of defects during the nano-friction process. In addition, the change mechanism of different grain sizes on wear scar depth, frictional force, friction coefficient, and internal damage in the repeated friction process is also explored. The results show that the frictional force is related to the direction of the dislocation slip, and that the friction coefficient change is related to the number of repeated frictions. Moreover, it is observed that the grinding ball has a shunting effect on the formed wear debris atoms, and the shunt point is located at the maximum horizontal radius. We reveal that the grain boundary structure has a strengthening effect. When the grinding ball rubs to the grain boundary, the nucleation of dislocation defects inside the workpiece is obviously hindered by it. Simultaneously, we also find that the closer the subsurface is to the bottom of the grinding ball, the greater the degree of damage to the workpiece by friction. Furthermore, with the grain size decreases that the material begins to soften, resulting in a decrease of frictional force, friction coefficient, and smaller defects are formed inside the workpiece. The research of this work can better clarify the microscopic mechanism of the polycrystalline friction process. Full article
(This article belongs to the Special Issue Anti-wear Coatings for High Temperature Applications)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop