Friction capabilities of graphite-based lubricants at room and over 1400K temperatures

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dc.contributor.authorSanchez Egea, A. J.
dc.contributor.authorMartynenko, V.
dc.contributor.authorAbate, G.
dc.contributor.authorDeferrari, N.
dc.contributor.authorMartinez Krahmer, D.
dc.contributor.authorLopez de Lacalle, L. N.
dc.date.accessioned2025-01-23T21:14:01Z
dc.date.available2025-01-23T21:14:01Z
dc.date.issued2019
dc.description.abstractThe present work investigates the lubricant capabilities at room and hot-forging temperatures (>1400K) of three types of lubricants with two different graphite concentrations (8% and 12%). These lubricants are distinguished by measuring the percentage of chemical elements and average size of graphite particles. Later, two standardized methods, i.e., pin-on disc and ring test, are utilized to assess the main friction differences under laboratory and real industry conditions, respectively. The results exhibit that the friction values at room temperature are lower for lubricant B, no matter which type of graphite concentration is used, whereas at hot-forging temperatures, greater percentage of graphite enhances lower frictional values when higher deformations are assessed. Additionally, the ring tests performed at hot-forging temperatures show significant tribology differences when the degree of deformation reaches 50%. Particularly, the lubricant B shows the lowest values of friction coefficients of 0.22 and 0.21 for 8% and 12% of graphite concentration, respectively. Therefore, it can be concluded that the selection of a proper type of lubricant (regarding chemical composition and size of solid suspension) and the graphite concentration are sensitive parameters, when it comes to achieve different bulk deformations combined with extreme temperatures like in hot-forging process.
dc.fuente.origenWOS
dc.identifier.doi10.1007/s00170-019-03290-4
dc.identifier.eissn1433-3015
dc.identifier.issn0268-3768
dc.identifier.urihttps://doi.org/10.1007/s00170-019-03290-4
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101014
dc.identifier.wosidWOS:000469002200040
dc.issue.numero5-8
dc.language.isoen
dc.pagina.final1633
dc.pagina.inicio1623
dc.revistaInternational journal of advanced manufacturing technology
dc.rightsacceso restringido
dc.subjectGraphitic lubricant
dc.subjectExtreme temperatures
dc.subjectFriction coefficients
dc.subjectRing test
dc.subjectHot-forging
dc.titleFriction capabilities of graphite-based lubricants at room and over 1400K temperatures
dc.typeartículo
dc.volumen102
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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