2134/11591292.v1
Michael Forder
Michael
Forder
Jamal Umer
Jamal
Umer
Nick Morris
Nick
Morris
Ramin Rahmani
Ramin
Rahmani
Sebastian Howell-Smith
Sebastian
Howell-Smith
Homer Rahnejat
Homer
Rahnejat
Asperity level frictional interactions of cylinder bore materials and lubricant composition
Loughborough University
2020
Atomic force microscope
Lateral force microscopy
Lubricant-surface combination
Friction
Mechanical Engineering
2020-01-13 14:49:18
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Asperity_level_frictional_interactions_of_cylinder_bore_materials_and_lubricant_composition/11591292
<div>Parasitic 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.</div><div><br></div><div><br></div>