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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/26346

Title: Asperity level tribological investigation of automotive bore material and coatings
Authors: Umer, J.
Morris, Nicholas J.
Leighton, Michael
Rahmani, Ramin
Howell-Smith, S.J.
Wild, R.
Rahnejat, Homer
Keywords: Cylinder bore material
Nano-scale friction
Atomic force microscope
Lateral force mode
Issue Date: 2018
Publisher: © The Authors. Published by Elsevier Ltd.
Citation: UMER, J. ...et al., 2018. Asperity level tribological investigation of automotive bore material and coatings. Tribology International, 117 (January 2018), pp. 131-140.
Abstract: Choosing in-cylinder surfaces is complex. A well-chosen surface has low friction and wear. Conversely, poor oversight often leads to premature failure through wear and scuffing. Typically cylinder bore surfaces are selected experientially. This paper demonstrates the use of Atomic Force Microscopy in LFM mode, characterising typical cylinder bore materials and coatings. The approach uses integrated LFM with continuum contact mechanics. It evaluates the real contact area and effective elastic modulus of the surface, including the effect of any reactive surface film. Surface energy and shear strength, as well as the coefficient of friction in nanoscale interactions are also determined. These properties are measured for 6 cylinder bore materials, including for composite Nickel-Silicon Carbide and DLC, used for high performance engines.
Description: This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Sponsor: The authors would like to express their gratitude to the Engineering and Physical Sciences Research Council (EPSRC) for the funding extended to this project under the CDT-ei scheme.
Version: Published
DOI: 10.1016/j.triboint.2017.08.023
URI: https://dspace.lboro.ac.uk/2134/26346
Publisher Link: https://doi.org/10.1016/j.triboint.2017.08.023
ISSN: 1879-2464
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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