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Lubricants
Special Issues
Tribology and Design
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Tribology and Design

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

Deadline for manuscript submissions: closed (1 December 2016) | Viewed by 4857

Special Issue Editors

Prof. Dr. Mark Hadfield

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Guest Editor
Department of Design and Engineering, Faculty of Science and Technology, Bournemouth University, Poole BH12 5BB, UK
Interests: tribology and design; ceramics in rolling contact; coatings
Dr. Rehan Ahmed

E-Mail Website
Guest Editor
School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, UK
Interests: surface engineering; rolling sliding contacts; residual stress; design

Special Issue Information

Dear Colleagues,

In this Special Issue, we will consider aspects of Tribology that can lead to the successful development of durable and reliable engineering designs. There is an increasing emphasis on engineering design that, in addition to challenging functional requirements, also uses technology and resources efficiently, minimise waste, and considers environmental impact. In these terms, the designer must take a holistic viewpoint of taking into account social, economic and functional risks and benefits. Here, Tribology can take a central role in terms of providing understanding applied to the influence of complex surface interactions for a range of industrial sectors. We take a wide range of selected high-profile research studies from Tribology to produce a Special Issue that is a useful reference for engineering designers. Areas considered are Tribology of Surface Coatings, Sustainable Design, Life-oriented Products, Product Life Design Tools, Test Methods, Industrial Case-Studies, Lubricants, Analytical Studies, Advanced Materials, and Wear Mechanisms.

Prof. Dr. Mark Hadfield
Dr. Rehan Ahmed
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

  • tribology and design
  • surface coatings
  • sustainable design
  • wear mechanisms
  • lubricants
  • advanced materials

Published Papers (1 paper)

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Research

1925 KiB  
Article
Assessing Boundary Film Forming Behavior of Phosphonium Ionic Liquids as Engine Lubricant Additives
by Mayank Anand, Mark Hadfield, Jose-Luis Viesca, Ben Thomas, Ruben González, Rob Cantrill and Antolin Hernández Battez
Lubricants 2016, 4(2), 17; https://doi.org/10.3390/lubricants4020017 - 30 May 2016
Cited by 8 | Viewed by 4482
Abstract
The reduction of friction and wear losses in boundary lubrication regime of a piston ring-cylinder liner tribo-system has always been a challenge for engine and lubricant manufacturers. One way is to use lubricant additives, which can form boundary film quickly and reduce the [...] Read more.
The reduction of friction and wear losses in boundary lubrication regime of a piston ring-cylinder liner tribo-system has always been a challenge for engine and lubricant manufacturers. One way is to use lubricant additives, which can form boundary film quickly and reduce the direct contact between asperities. This article focuses on the assessment of boundary film forming behavior of two phosphonium-based ionic liquids (ILs) as additives in engine-aged lubricant to further improve its film forming capabilities and hence reduce friction and wear of contacting surfaces. A reciprocating piston ring segment-on-flat coupon under fully flooded lubrication conditions at room temperature (approx. 25 °C) was employed. The trihexyltetradecyl phosphonium bis(2-ethylhexyl) phosphate and trihexyltetradecyl phosphonium bis(2,4,4-tri-methylpentyl) phosphinate ionic liquids were used as additives in 6 vol. % quantity. Benchmark tests were conducted using fully formulated new lubricant of same grade (with and without ILs). Results revealed that the addition of phosphonium ILs to engine-aged lubricant led to quicker initiation of boundary film forming process. In addition, friction and wear performance of engine-aged lubricant improved by the addition of both ILs and these mixtures outperformed the fresh fully formulated oil. Chemical analysis showed higher concentration of phosphorus element on the worn surface indicating presence of ILs in the formed tribofilms. Full article
(This article belongs to the Special Issue Tribology and Design)
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