Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.4
2.9
Journals
Metals
Special Issues
Surface Engineering and Coating Tribology
share announcement

Surface Engineering and Coating Tribology

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Failure Analysis".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 4778

Special Issue Editor

Dr. Sima A. Alidokht

E-Mail Website
Guest Editor
Mechanical Engineering Department, Memorial University of Newfoundland, St John's, NL A1B 3X5, Canada
Interests: surface engineering; coating tribology; mechanical properties; composite

Special Issue Information

Dear Colleagues,

The progressive wear of moving parts and components under operation conditions results in a decline in performance, efficiency, and functions. Damaged components need to be repaired or replaced with new ones, which requires temporarily shutting down the machine or the entire technological process.

Meanwhile, the global industry is constantly seeking to improve the efficiency of technological processes and tools. The drive to increase efficiency across most industrial sectors contributes to ever more challenging materials functionality. For example, in aero engines, the path to increased performance requires turbines to operate at higher temperatures, and the blades need to be able to withstand extreme conditions at the physical limits of conventional applied materials for that to be so. Therefore, there is a growing need to identify new and advanced structural and tool materials options, as well as methods of their production and processing.

In this Special Issue of Metals, we welcome articles that focus on the relationships between the process, structure, properties, and tribological performance of metal-based coatings developed by various surface engineering processes. Your contribution to this Special Issue is highly valued and appreciated.

Dr. Sima A. Alidokht
Guest Editor

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. Metals 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

  • surface engineering
  • coating
  • tribology
  • wear
  • friction

Published Papers (4 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

Jump to: Review

12 pages, 6040 KiB  
Article
Fundamental Atomistic Insights into Tunable Tribological Performance of NbC/Nb Films through Thickness and Depth Effects
by Iman Salehinia
Metals 2024, 14(1), 2; https://doi.org/10.3390/met14010002 - 19 Dec 2023
Viewed by 789
Abstract
Ceramic–metal nanolaminates (CMNLs) are promising scratch-resistant coatings, but knowledge gaps remain regarding the interactive effects of individual layer thickness and scratch depth. This study employed molecular dynamics simulations to investigate the tribological performance of NbC/Nb CMNLs, systematically varying ceramic and metal layer thicknesses [...] Read more.
Ceramic–metal nanolaminates (CMNLs) are promising scratch-resistant coatings, but knowledge gaps remain regarding the interactive effects of individual layer thickness and scratch depth. This study employed molecular dynamics simulations to investigate the tribological performance of NbC/Nb CMNLs, systematically varying ceramic and metal layer thicknesses (0.5–7.5 nm) and scratch depths (3, 5 nm). Models were loaded under displacement-controlled indentation followed by scratching. Mechanical outputs like material removal, friction coefficients, normal, and friction forces quantified scratch resistance. Material removal was even below that for NbC alone, demonstrating the multilayer benefit. Thinner layers showed complete penetration by the indenter, with material rolled in front rather than piled up. Thicker layers resisted penetration, enabling pile-up and lower friction coefficients due to higher normal forces. Excessive material removal decreased normal forces and raised friction coefficients. Peak coefficient occurred around 1.5–3 nm layer thicknesses where substantial top layer volumes were removed, minimizing ceramic under the indenter. Layer thickness corresponding to lowest material removal depended on scratch depth, with 3 nm and 7.5 nm layer thickness for 3 and 5 nm depths, respectively. Metallic layers reduced stiffness and drove material downward over piling up. Quantifying scratch resistance versus geometric parameters elucidates fundamental physics to facilitate superior CMNL coating fabrication. Full article
(This article belongs to the Special Issue Surface Engineering and Coating Tribology)
►▼ Show Figures

Figure 1

19 pages, 13690 KiB  
Article
Surface Morphology Analysis of Laser Shock Peened 20CrMnTi Steel: A Statistical Evaluation
by Jiaoyi Wu, Dongya Zhang and Xiaodong Wang
Metals 2023, 13(10), 1673; https://doi.org/10.3390/met13101673 - 29 Sep 2023
Viewed by 709
Abstract
Surface morphology impacts material performance and durability significantly. To gain a deeper understanding of the impact of laser shock peening (LSP) treatment on the surface morphology of materials and to explore more optimized LSP treatment strategies, this study presents an investigation into the [...] Read more.
Surface morphology impacts material performance and durability significantly. To gain a deeper understanding of the impact of laser shock peening (LSP) treatment on the surface morphology of materials and to explore more optimized LSP treatment strategies, this study presents an investigation into the surface morphology of 20CrMnTi steel following LSP treatment. Through the application of statistical analysis, the study examines the induced surface morphology variations resulting from both single-point repetitive LSP and multiple LSP treatments. Experimental results demonstrate significant alterations in surface roughness and peak height distribution after LSP treatments, accompanied by the presence of high amplitude compressive residual stress (CRS). Moreover, the depth of laser-induced indentations is found to be closely related to the number of impacts, and the incidence angle of the laser exhibits a discernible influence on the directional texture and periodicity of the impacted surfaces. This investigation also proposes a method for estimating surface morphology variations after LSP treatment by means of analysis of impact patterns, thereby offering the potential for enhancing the friction and wear performance of the impacted surfaces through the adjustment of the impact region position during multi-layer LSP treatment. Full article
(This article belongs to the Special Issue Surface Engineering and Coating Tribology)
►▼ Show Figures

Figure 1

24 pages, 25609 KiB  
Article
Low-Temperature Carburization: Ex Situ Activation of Austenitic Stainless Steel
by Cyprian Illing, Zhe Ren and Frank Ernst
Metals 2023, 13(2), 335; https://doi.org/10.3390/met13020335 - 07 Feb 2023
Viewed by 1412
Abstract
Surface engineering of chromium-oxide-passivated alloys (e.g., stainless steels) by low-temperature infusion of interstitial solutes (carbon, nitrogen) from a gas phase requires “surface activation” by removing or perforating the passivating oxide film. We demonstrate a new approach for surface activation based on pyrolysis of [...] Read more.
Surface engineering of chromium-oxide-passivated alloys (e.g., stainless steels) by low-temperature infusion of interstitial solutes (carbon, nitrogen) from a gas phase requires “surface activation” by removing or perforating the passivating oxide film. We demonstrate a new approach for surface activation based on pyrolysis of a reagent powder, introduce advanced methodology to study its microstructure, and compare it to an established activation method. Rather than a bare alloy surface, stripped of its oxide, we find that an “activated” surface involves a reaction layer containing high concentrations of Cl, carbon, or nitrogen. We propose a model for the microscopic mechanism of surface activation that will enable future systematic development toward more effective process schemes. Full article
(This article belongs to the Special Issue Surface Engineering and Coating Tribology)
►▼ Show Figures

Figure 1

Review

Jump to: Research

16 pages, 3231 KiB  
Review
Improvement of the High Temperature Wear Resistance of Laser Cladding Nickel-Based Coating: A Review
by Yingpeng Liu, Kaiming Wang and Hanguang Fu
Metals 2023, 13(5), 840; https://doi.org/10.3390/met13050840 - 24 Apr 2023
Cited by 1 | Viewed by 1463
Abstract
Nickel-based coatings obtained by laser melting are broadly applied for surface modification owing to their high bond strength and exceptional wear resistance. Nickel-based laser cladding coatings are also extensively employed in high temperature wear environments. In this paper, the research progress on improving [...] Read more.
Nickel-based coatings obtained by laser melting are broadly applied for surface modification owing to their high bond strength and exceptional wear resistance. Nickel-based laser cladding coatings are also extensively employed in high temperature wear environments. In this paper, the research progress on improving the high temperature wear resistance of laser cladding nickel-based composite coatings was reviewed by introducing a hard ceramic phase, adding solid lubricants and rare earth elements. On this basis, the material system to enhance the high temperature wear resistance of coating was summarized from the perspectives of the type, addition amount, morphology and distribution law of the hard ceramic phase, etc. The synergistic effect of various lubricants on improving the high temperature wear resistance of coating was discussed, and the action mechanism of solid lubricants in the high temperature extreme environment was analyzed. Finally, this paper summarizes the main difficulties involved in increasing the high temperature wear resistance of nickel-based coatings and some problems worthy of attention in the future development. Full article
(This article belongs to the Special Issue Surface Engineering and Coating Tribology)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-4
Back to TopTop