Functional Surface Modification Using Concentrated Energy Flows

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

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 571

Special Issue Editors


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Guest Editor
Department of Experimental Mechanics, Institute of Fundamental Technological Research, Polish Academy of Science, Pawinskiego 5 B St., 02-106 Warsaw, Poland
Interests: magnetron sputtering; materials science of thin films and coatings (hard wear-resistant, heat-resistant, low-friction, tribological coatings, etc.); transition metal ceramics (borides, carbides, etc.)
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Guest Editor
1. Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego St. 5B, 02-106 Warsaw, Poland
2. Department of Applied Material Science and TCM, Sumy State University, Rimsky Korsakov St. 2, 40007 Sumy, Ukraine
Interests: surface modification using concentrated energy flows; electro-spark alloying; materials science; functional coating (heat-resistant, corrosion-resistant, wear-resistant, running-in coating etc.)

Special Issue Information

Dear Colleagues,

Modern coatings are rather diverse, both in terms of properties and methods of production. The main reason for the development of new and advanced coating technologies is the desire to increase the durability of products. Optimization of a coating system involves an appropriate choice of the coating composition, structure of the materials, porosity and adhesion, technology, compatibility of substrates and coating materials, availability and cost of the coating materials, and the possibility of their renewal and repair.

A promising direction of structural modification of the surface layers is processing with concentrated high-energy flows of energy and matter (CEF), such as laser technologies, electron-beam processing, ion-beam processing, ion implantation, vacuum-plasma, pulse-plasma processing, electrospark alloying, etc.

Unlike traditional technologies for surface treatment of materials, CEF has its own specifics and features; in some cases, it can replace traditional technologies for modifying surface layers due to higher efficiency, environmental friendliness and uniqueness of the results obtained. Therefore, it is relevant to study the features of coating formation using CEF.

The current Special Issue is open for papers focusing on the following concepts:

  • Deep physicochemical analysis of the coatings microstructure obtained with CEF;
  • Theoretical and experimental studies of the behaviour of the microstructure during surface modification with CEF;
  • Evaluation of the effect of changing the microstructure on the properties of the coating;
  • Creation of coatings via combined methods based on CEF.

Dr. Tomasz Mościcki
Dr. Oksana Gaponova
Guest Editors

Manuscript Submission Information

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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

  • laser
  • ion beams
  • electron beams
  • coating
  • texturing
  • microstructure
  • nanostructure
  • properties
  • tribology
  • simulation models

Published Papers (1 paper)

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Research

15 pages, 10043 KiB  
Article
Investigation of the Structure and Properties of MoS2 Coatings Obtained by Electrospark Alloying
by Oksana Haponova, Viacheslav Tarelnyk, Tomasz Mościcki, Nataliia Tarelnyk, Joanna Półrolniczak, Oleksandr Myslyvchenko, Bogusława Adamczyk-Cieślak and Joanna Sulej-Chojnacka
Coatings 2024, 14(5), 563; https://doi.org/10.3390/coatings14050563 - 01 May 2024
Viewed by 372
Abstract
Electrospark coatings alloyed with MoS2 have been studied. The coatings were obtained by the following two strategies: the first consisted of pre-applying molybdenum disulfide to the treated surface and alloying with a molybdenum electrode (Mo + MoS2 coating); the second consisted [...] Read more.
Electrospark coatings alloyed with MoS2 have been studied. The coatings were obtained by the following two strategies: the first consisted of pre-applying molybdenum disulfide to the treated surface and alloying with a molybdenum electrode (Mo + MoS2 coating); the second consisted of applying a paste with a sulfur content of 33.3% to the treated surface and alloying with a molybdenum electrode (Mo + S coating). The structure, phase composition, and tribological properties of the coatings were investigated. The coatings have a complex structure consisting of an upper soft layer, a hardened white layer, a diffusion zone, and a substrate. Element analysis and cross-sectional hardness changes indicated that element diffusion occurred at the coating/substrate interface. The phase composition of the coatings is represented by BCC and FCC solid solutions on Fe, and MoS2 is also detected. In Mo + S coatings, the molybdenum disulfide on the surface is about 8%; in Mo + MoS2 coatings, it is 27%–46%. The obtained coatings show very good tribological properties compared to molybdenum ESA coatings. The frictional forces and coefficients are reduced by a factor of 10 and 40, depending on the test conditions. Full article
(This article belongs to the Special Issue Functional Surface Modification Using Concentrated Energy Flows)
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