Recent Advances in Experimental Tribology: Devices and Methods

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

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 6983

Special Issue Editors


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Guest Editor
Anton Paar TriTec SA, Vernets 6, 2035 Corcelles, Switzerland
Interests: polymer tribology and sealing systems; vacuum tribology including lubricants, hard coatings and materials; material surface characterization and engineering; design of scientific equipment for tribology

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Guest Editor
Eduardo Torroja Institute (IETCC-CSIC), Spanish National Research Council, Madrid, Spain
Interests: tribology; tribochemistry; triboemission; triboluminescence

Special Issue Information

Dear Colleagues,

The progresses made by technology in the last decades and the key challenges the human kind will have to face in various areas including the exploration of the space and other planets, the climate change, the advances of the medical technologies and so on, need a deeper understanding of material surfaces, interfaces and their complex mechanical and tribological behaviour. The special working conditions the materials are supposed to work, the temperature ranges from cryogenic to over thousands of degrees C, ultrahigh vacuum, extremely clean or harsh environments, is pushing the researchers to develop highly specialized custom devices and machines able to reproduce such conditions and perform experimental simulation of novel materials and lubricants under most relevant ambient conditions. Furthermore, new methods of studying complex physico-chemical processes at hidden mechanical interfaces using novel multidisciplinary approaches are being developed and applied.

Recently, such developments have been drawn continuously growing interest in the scientific sector. The current Special Issue is aimed at highlighting the latest development in such field to foster the knowledge exchange in between the scientific community, engineers and industrial stakeholders as well as at providing relevant state of the art for academy.

Dr. Marcello Conte
Dr. Roman Nevshupa
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

  • tribological device
  • tribological methods
  • vacuum triblogy
  • environmental tribology
  • high temperature tribology
  • tribo-emission

Published Papers (2 papers)

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Research

21 pages, 9898 KiB  
Article
A Novel Reciprocating Tribometer for Friction and Wear Measurements with High Contact Pressure and Large Area Contact Configurations
by Kim Berglund, Maria Rodiouchkina, Jens Hardell, Kalle Kalliorinne and Jens Johansson
Lubricants 2021, 9(12), 123; https://doi.org/10.3390/lubricants9120123 - 17 Dec 2021
Cited by 4 | Viewed by 4119
Abstract
There are many moving machine assemblies with conformal tribological contacts at very high contact pressures, e.g., sliding bearings, propeller shaft bearings and machine guideways. Furthermore, applications such as trunnion and guide vane bearing in Kaplan turbines have very low sliding speeds and oscillatory [...] Read more.
There are many moving machine assemblies with conformal tribological contacts at very high contact pressures, e.g., sliding bearings, propeller shaft bearings and machine guideways. Furthermore, applications such as trunnion and guide vane bearing in Kaplan turbines have very low sliding speeds and oscillatory types of motion. Although there is a vast selection of tribology test rigs available, there is still a lack of test equipment to perform friction and wear tests under high contact pressure, reciprocatory sliding and large area contact. The aim of this work is thus to develop a novel reciprocating tribometer and test method that enables friction and wear tests under low-speed reciprocatory sliding with contact pressures up to 90 MPa in a flat-on-flat contact configuration. First, a thorough description of the test rig design is given. Secondly, the influence of contact pressure and stroke length on the tribological properties of a stainless steel and polymer composite material combination is studied. The significance of considering creep, friction during the stroke and contact temperature is specifically highlighted. The novel tribometer can be used to screen different bearing and shaft material combinations and to evaluate the friction and wear performance of self-lubricating bearings for the specific operating conditions found in Kaplan turbines. Full article
(This article belongs to the Special Issue Recent Advances in Experimental Tribology: Devices and Methods)
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14 pages, 4413 KiB  
Article
New Methodologies Indicating Adhesive Wear in Load Step Tests on the Translatory Oscillation Tribometer
by Gregor Patzer and Mathias Woydt
Lubricants 2021, 9(10), 101; https://doi.org/10.3390/lubricants9100101 - 11 Oct 2021
Cited by 8 | Viewed by 2294
Abstract
When looking in detail at analyses of the tribological load-carrying capacity of lubricants, it becomes apparent that an exclusive evaluation of the evolution of the coefficient of friction alone cannot provide any sufficient criteria for determining the occurrence of adhesive failure. For this [...] Read more.
When looking in detail at analyses of the tribological load-carrying capacity of lubricants, it becomes apparent that an exclusive evaluation of the evolution of the coefficient of friction alone cannot provide any sufficient criteria for determining the occurrence of adhesive failure. For this reason, extending the knowledge base by combining several criteria in order to draw a clearer picture of adhesive wear mechanisms is urgently required. This can be achieved by combining the evolution of coefficient of friction with stroke signals and/or the electrical contact resistance and/or contact temperature and/or acoustic emission and/or stroke zero position, frictional power input and further derived parameters. Full article
(This article belongs to the Special Issue Recent Advances in Experimental Tribology: Devices and Methods)
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