| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Seabra, Jorge
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023Direct Energy Deposition Parametric Simulation Investigation in Gear Repair Applicationscitations
- 2020Tribological Investigation on the Friction and Wear Behaviors of Biogenic Lubricating Greases in Steel–Steel Contactcitations
- 2016TRIBOLOGICAL TESTING OF THERMALLY AGED GREASES
- 2015FORMULATION, RHEOLOGY AND THERMAL AGING OF POLYMER GREASES
- 2012Low-loss austempered ductile iron gears: Experimental evaluation comparing materials and lubricantscitations
- 2011Low torque loss gears: austempered ductile iron versus carburized steelcitations
- 2011Theoretical and experimental investigations about flank breakage in bevel gearscitations
- 2008Austempered ductile iron (ADI) gears: Power loss, pitting and micropittingcitations
- 2006Friction coefficient in FZG gears lubricated with industrial gear oils: Biodegradable ester vs. mineral oilcitations
- 2005Artificial indentations for the study of contact fatigue of austempered ductile iron (ADI) discscitations
- 2004Contact fatigue behaviour of artificially indented austempered ductile iron discs
- 2002ADI behaviour under twin-disc contact fatigue tests
- 2002Austempered ductile iron with tempered martensite
- 2000Experimental observations of contact fatigue crack mechanisms for austempered ductile iron (ADI) discscitations
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document
TRIBOLOGICAL TESTING OF THERMALLY AGED GREASES
Abstract
Non-additized batches of lubricating greases were subjected to an artificial thermal aging procedure. The fresh and aged samples were then tribologically characterized through film thickness measurements and Stribeck curves, over a large range of entrainment speeds on a ball-on-disc test rig at different operating temperatures, ensuring fully flooded conditions. The results were analysed at the light of the physical and chemical changes regarding the fresh greases. The film thickness increased for all greases after the thermal aging. The film thickness plateau at low speeds also changed and for certain greases it disappeared under the same range of entrainment speeds. The friction behaviour also changed considerably.