Effect of laser glazing and laser shock peening on tribological performance of 1080 carbon steel

Saud Aldajah, Oyelayo O. Ajayi, George Fenske, Claude B. Reed, Zhiyue Xu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-power laser surface treatments in the form of glazing, shock peening, cladding, and alloying can significantly affect material tribology. In this paper, effects of laser glazing, laser shock peening, and their combination on the tribological behavior of 1080 carbon steel were investigated. Laser glazing is a process in which a high-power laser beam melts the top layer of the surface, followed by rapid cooling and resolidification. This results in a new surface layer microstructure and properties. Laser shock peening, on the other hand, is a mechanical process in which a laser generates pressure pulses on the surface of the metal, similar to shot peening. Five conditions were evaluated: untreated (baseline), laser shock peened only (PO), laser-glazed only (GO), laser-glazed then shock peened last (GFPL), and laser shock peened then glazed last (PFGL). In pin-on-disc testing, all laser-treated surfaces reduced dry friction, with the GFPL surface having maximum friction reduction of 43%. Under lubricated conditions, all laser-treated surfaces except the PO sample lowered friction. Similarly, all glazed samples reduced wear by a factor of 2-3, while the PO sample did not change wear significantly. These tribological results are associated with changes in the near-surface microstructure and properties.

Original languageEnglish
Title of host publicationProceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004
Pages1647-1654
Number of pages8
EditionPART B
Publication statusPublished - Dec 1 2004
Event2004 ASME/STLE International Joint Tribology Conference - Long Beach, CA, United States
Duration: Oct 24 2004Oct 27 2004

Publication series

NameProceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004
NumberPART B

Other

Other2004 ASME/STLE International Joint Tribology Conference
Country/TerritoryUnited States
CityLong Beach, CA
Period10/24/0410/27/04

ASJC Scopus subject areas

  • General Engineering

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