Friction characterization when combining laser surface texturing and graphite-based lubricants

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dc.contributor.authorMartinez Krahmer, D.
dc.contributor.authorSanchez Egea, A. J.
dc.contributor.authorCelentano, D.
dc.contributor.authorMartynenko, V
dc.contributor.authorCruchaga, M.
dc.date.accessioned2024-01-10T13:48:36Z
dc.date.available2024-01-10T13:48:36Z
dc.date.issued2020
dc.description.abstractThe present work analyzes the friction capabilities at room temperature of three types of lubricants (denoted as A, B and C) with a graphite concentration of 5%. To do that, the standard pin -on disc test is deployed to study the variation of the friction coefficient when combining these graphite-based lubricants with surfaces made by grinding and different laser surface textures. These lubricants are characterized by measuring the percent of the chemical elements, the average size of the graphite particles and the kinematic viscosity. The experiments show that the lubricant B combined with a higher density of LST presents the lowest friction coefficient of about 0.24. Additionally, assuming a hydrodynamic regime for the textured surfaces, the fluid dynamics simulations carried out as part of the study showed, in agreement with the experimental measurements, the lowest friction coefficient value for a textured surface with the highest dimple density. This seems to be associated to the combined effect of an increase of the hydrodynamic pressure with a weak vortex formation within the dimples, due to the low distortion of the streamlines which, ultimately, attenuates the friction coefficient between the surfaces. (C) 2019 The Authors. Published by Elsevier B.V.
dc.description.funderSerra Hunter program (Generalitat de Catalunya)
dc.description.funderNational Council for Scientific and Technological Research of Chile (Fondecyt)
dc.fechaingreso.objetodigital27-03-2024
dc.format.extent9 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jmrt.2019.12.007
dc.identifier.eissn2214-0697
dc.identifier.issn2238-7854
dc.identifier.urihttps://doi.org/10.1016/j.jmrt.2019.12.007
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79380
dc.identifier.wosidWOS:000521952300059
dc.information.autorucIngeniería;Celentano Diego Javier;S/I;1005007
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final1767
dc.pagina.inicio1759
dc.publisherELSEVIER
dc.revistaJOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
dc.rightsacceso abierto
dc.subjectLaser surface texturing
dc.subjectGraphite-based
dc.subjectLubricant
dc.subjectFriction coefficient
dc.subjectPin-On disc
dc.subjectNumerical approach
dc.subjectWEAR
dc.subjectCONTACT
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleFriction characterization when combining laser surface texturing and graphite-based lubricants
dc.typeartículo
dc.volumen9
sipa.codpersvinculados1005007
sipa.indexWOS
sipa.trazabilidadCarga SIPA;09-01-2024
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