Microlubrication effect by laser-textured steel surfaces

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • P. Andersson
  • Jari Koskinen

  • S. Varjus
  • Y. Gerbig
  • H. Haefke
  • S. Georgiou
  • B. Zhmud
  • W. Buss

Research units

  • VTT Technical Research Centre of Finland
  • CSEM SA
  • IESL FORTH
  • YKI, Institute for Surface Chemistry
  • Fuchs Europe Schmierstoffe GmbH

Abstract

The beneficial effect on lubrication achieved through microtexturing of sliding surfaces by laser ablation and polishing was investigated. The investigation was based on two independent experimental approaches with oil-lubricated smooth and laser-textured steel surfaces in oscillating sliding contact with a steel ball. Two types of laser-textured patterns of microcavities were studied. It was found that, in comparison with smooth steel surfaces, the laser-texturing significantly reduced friction and wear. The most significant improvement in the tribological performance was achieved with an oil of high viscosity combined with a texture comprising a low density of deep microcavities with a small opening.

Details

Original languageEnglish
Pages (from-to)369-379
Number of pages11
JournalWear
Volume262
Issue number3-4
Publication statusPublished - 4 Feb 2007
MoE publication typeA1 Journal article-refereed

    Research areas

  • Friction, Laser-texturing, Lubrication, Wear

ID: 4348492