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Lubricants
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Self-Organization during Friction: Do We Know Enough about It?
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Self-Organization during Friction: Do We Know Enough about It?

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

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 3255

Special Issue Editor

Dr. German S. Fox-Rabinovich

E-Mail Website
Guest Editor
Department of Mechanical Engineering, McMaster University, 1280 Main St. West, Hamilton, ON L8S 4L7, Canada
Interests: hard Physical Vapor Deposited (PVD) coatings; surface science and engineering; thin films and interfaces; adaptive and self-lubricating coatings; self-organization during friction; tribology of cutting

Special Issue Information

Dear Colleagues,

In the current era of nano-science and nano-technology, the latest developments in the field of tribology have provided several major contributions to thermo-dynamics, self-organization, and self-organized criticality of nonequilibrium systems. Studies of these fields are paving the way for future engineering advancements capable of dramatically improving wear performance under extreme conditions. The major focus of this issue is the development of future thin film nano-materials for various tribological applications, such as machining tools, bearing and other heavily loaded tribo-systems.

The common direction in all of these fields concerns the study of surface/interface phenomena and dissipative structures that form on the surface.  These structures can significantly improve the service life of tribo-systems. A combined knowledge of tribology, nonequilibrium thermo-dynamics and modern material science is vital for developing efficient strategies of dealing with ongoing challenges faced by tribology and material science.

The current Special Issue aims to bring together contributions from world-leading scientists working in the fields of tribology, nonequilibrium thermo-dynamics and material science, to achieve a better understanding in the field of engineering that is concerned with control of complex phenomena under extreme tribological conditions.

Dr. German S. Fox-Rabinovich
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. 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

  • self-organization
  • self-organized criticality
  • tribology
  • dissipative structure
  • complex system
  • nano-materials

Published Papers (2 papers)

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Research

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11 pages, 7172 KiB  
Article
Accelerated Tribo-Films Formation in Complex Adaptive Surface-Engineered Systems under the Extreme Tribological Conditions of Ultra-High-Performance Machining
by German S. Fox-Rabinovich, Iosif S. Gershman and Jose Luis Endrino
Lubricants 2023, 11(5), 221; https://doi.org/10.3390/lubricants11050221 - 15 May 2023
Cited by 2 | Viewed by 1304
Abstract
This study investigates accelerated physical–chemical processes in a complex adaptive surface-engineered system represented by a nano-multilayer TiAlCrSiYN/TiAlCrN PVD coating under the extreme tribological conditions of ultra-high-performance dry machining of hardened H 13 tool steel. These processes are similar to the different catalyzing phenomena. [...] Read more.
This study investigates accelerated physical–chemical processes in a complex adaptive surface-engineered system represented by a nano-multilayer TiAlCrSiYN/TiAlCrN PVD coating under the extreme tribological conditions of ultra-high-performance dry machining of hardened H 13 tool steel. These processes are similar to the different catalyzing phenomena. Experimental results of tool life vs. wear rate, SEM/TEM data of the worn surfaces, XPS and EDS data of tribo-films formed on the friction surfaces, and chip surface morphology are presented in this study. The corresponding relationships between self-organization, self-organized criticality, and various catalyzing phenomena were evaluated on the basis of the accrued data. A method of enhancing these processes through the variation of machining conditions is also outlined, which resulted in the improvement of coated tool life by 35%. Full article
(This article belongs to the Special Issue Self-Organization during Friction: Do We Know Enough about It?)
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Review

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20 pages, 5131 KiB  
Review
Control over Multi-Scale Self-Organization-Based Processes under the Extreme Tribological Conditions of Cutting through the Application of Complex Adaptive Surface-Engineered Systems
by German Fox-Rabinovich, Iosif Gershman, Saurav Goel and Jose Luis Endrino
Lubricants 2023, 11(3), 106; https://doi.org/10.3390/lubricants11030106 - 27 Feb 2023
Cited by 1 | Viewed by 1590
Abstract
This paper features a comprehensive analysis of various multiscale selforganization processes that occur during cutting. A thorough study of entropy production during friction has uncovered several channels of its reduction that can be achieved by various selforganization processes. These processes are (1) self-organization [...] Read more.
This paper features a comprehensive analysis of various multiscale selforganization processes that occur during cutting. A thorough study of entropy production during friction has uncovered several channels of its reduction that can be achieved by various selforganization processes. These processes are (1) self-organization during physical vapor deposition PVD coating deposition on the cutting tool substrates; (2) tribofilm formation caused by interactions with the environment during operation, which consist of the following compounds: thermal barriers; Magnéli phase tribo-oxides with metallic properties at elevated temperatures, tribo-oxides that transform into a liquid phase at operating temperatures, and mixed action tribo-oxides that serve as thermal barriers/lubricants, and (3) multiscale selforganization processes that occur on the surface of the tool during cutting, which include chip formation, the generation of adhesive layers, and the buildup edge formation. In-depth knowledge of these processes can be used to significantly increase the wear resistance of the coated cutting tools. This can be achieved by the application of the latest generation of complex adaptive surface-engineered systems represented by several state-of-the-art adaptive nano-multilayer PVD coatings, as well as high entropy alloy coatings (HEAC). Full article
(This article belongs to the Special Issue Self-Organization during Friction: Do We Know Enough about It?)
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