Excimer laser surface processing for tribological applications in metals and ceramics

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:6300616

Jervis, T R; Hivonen, Juha-Pekka; Nastasi, M

The use of pulsed excimer lasers, operating at UV wavelengths, for surface modification has many potential applications in the tribology of metals and ceramics. Alterations of surface chemistry and microstructure are possible on standard engineering materials. We have demonstrated improved tribological performance in stainless steel by the formation of a unique oxide and by Ti mixing and in SiC by Ti mixing. Specifically, we have observed reduced friction in dry sliding conditions and a change in the wear process resulting in greatly reduced surface damage. We have also demonstrated the effectiveness of excimer laser mixing in other systems with potential tribological applications. 22 refs., 7 figs.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: USDOD; DOE/CE
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6300616
• Report Number(s): LA-UR-90-3455; CONF-910478-1; ON: DE91002324
• Resource Relation: Conference: Society of Tribologists and Lubrication Engineers conference, Montreal (Canada), 29 Apr - 2 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
TRIBOLOGY
METALS
SILICON CARBIDES
LASER BEAM MACHINING
SURFACES
PROCESSING
EXCIMER LASERS
FRICTION
MELTING
MICROSTRUCTURE
STAINLESS STEEL-304
TEMPERATURE EFFECTS
TITANIUM ALLOYS
ALLOYS
AUSTENITIC STEELS
CARBIDES
CARBON COMPOUNDS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
GAS LASERS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
LASERS
MACHINING
MATERIALS
NICKEL ALLOYS
PHASE TRANSFORMATIONS
SILICON COMPOUNDS
STAINLESS STEELS
STEEL-CR19NI10
STEELS
360101* - Metals & Alloys- Preparation & Fabrication
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication