Abstract

We have investigated the friction properties of lubricated laser microtextured surfaces. The microtexture consists of a square lattice of micro-holes whose diameter, depth and spacing are controlled during the laser texturing process. All surfaces have the same texture area density, but different diameter and depth of the micro-holes. We measure the coefficient of friction on a range of sliding velocities covering the range from the mixed lubrication to the hydrodynamic regime. We find that the depth and diameter of the micro-holes have a huge influence in determining the amount of friction reduction at the interface. Interestingly experiments also show that optimal micro-hole depth values, minimizing the friction in the hydrodynamic regime, are remarkably effective also in the mixed lubrication regime.

Autore Pugliese

• Scaraggi Michele

Tutti gli autori

• Scaraggi M. , Mezzapesa F.P. , Carbone G. , Ancona A. , Sorgente D , Lugarà P.M.

Titolo volume/Rivista

TRIBOLOGY INTERNATIONAL

Anno di pubblicazione

2014

ISSN

0301-679X

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

10

Ultimo Aggiornamento Citazioni

2017-04-23 03:20:56

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile