Asperity-2021-IMechE-J-1350650120903928.pdf (739.59 kB)
Asperity level frictional interactions of cylinder bore materials and lubricant composition
journal contribution
posted on 2020-01-13, 14:49 authored by Michael Forder, Jamal Umer, Nick MorrisNick Morris, Ramin RahmaniRamin Rahmani, Sebastian Howell-Smith, Homer RahnejatParasitic frictional losses in internal combustion engines of race vehicles adversely affect their performance. A significant proportion of these losses occur within the piston-cylinder system. This paper presents a study of the compatibility of cylinder bore surface materials with typical lubricant base constituent stock (Poly Alpha Olefin (PAO) and Polyolester (POE)) as well as a fully formulated lubricant. Nanoscale boundary friction is measured using lateral force microscopy. The effect of material properties, nanoscale roughness and lubricant species upon underlying mechanisms of generated friction is presented. Advanced cylinder materials and coatings and lubricant molecular species used for high performance engines are investigated, an integrated approach not hitherto reported in literature.
Funding
Capricorn Automotive and the Engineering and Physical Sciences Research Council (EPSRC) under the DTP scheme
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering TribologyVolume
235Issue
4Pages
679 - 686Publisher
SAGE PublicationsVersion
- VoR (Version of Record)
Rights holder
© IMechEPublisher statement
This is an Open Access Article. It is published by Sage under the Creative Commons Attribution-NonCommercial 4.0 International Licence (CC BY-NC). Full details of this licence are available at: https://creativecommons.org/licenses/by-nc/4.0/Acceptance date
2019-12-18Publication date
2020-02-04Copyright date
2020ISSN
1350-6501eISSN
2041-305XPublisher version
Language
- en