Abstract

We have investigated the friction properties of lubricated laser micro-textured surfaces. The micro-texture 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 diameters and depths of the micro-holes. We measure the coefficient of friction on a range of sliding velocities from the mixed lubrication regime to the hydrodynamic regime. We find that the depth and the 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. (C) 2014 Elsevier Ltd. All rights reserved.

Autore Pugliese

• Ancona Antonio

Tutti gli autori

• Scaraggi M.; Mezzapesa F.P.; Carbone G.; Ancona A.; Sorgente D.; Lugara 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

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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