Evaluation of Lubricant Viscosity and Base Oil Effects by Form Tapping Test - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2008

Evaluation of Lubricant Viscosity and Base Oil Effects by Form Tapping Test

Résumé

In order to correlate the effect of lubricant viscosity and base oil on the efficiency of a lubricant, we measure the variation of tapping torque according to ASTM D5619 standard. Three fully formulated lubricants containing the same additive package but having different viscosities are tested in the first part of the experiment. The effect of chemically active and chemically non-active paraffinic base oils combined with a sulphur additive is studied in the second part. The nature of the tribofilm created at the bottom of the threads formed during the second part of the study is characterized by X-ray Photoelectron Spectroscopy (XPS). The aim is to associate the surface analysis results with the efficiency obtained during the form tapping tests. The results show that the lubricant viscosity does not have any influence on the tapping torque values whereas physico-chemical interactions between different base oils and a sulphur additive can modify importantly the overall efficiency of lubricant.
Fichier principal
Vignette du fichier
LABOMAP_ICTL_2008_BIERLA.pdf (1.75 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00910301 , version 1 (27-11-2013)

Identifiants

  • HAL Id : hal-00910301 , version 1
  • ENSAM : http://hdl.handle.net/10985/7544

Citer

Aleksandra Bierla, Guillaume Fromentin, Jean-Michel Martin, Thierry Le Mogne, Clotilde Minfray, et al.. Evaluation of Lubricant Viscosity and Base Oil Effects by Form Tapping Test. 16th International Colloquium Tribology Lubricants, Materials and Lubrication Engineering, Jan 2008, Germany. pas de pagination. ⟨hal-00910301⟩
327 Consultations
293 Téléchargements

Partager

Gmail Facebook X LinkedIn More