Excimer laser surface processing for tribological applications in metals and ceramics
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:
- DOD; DOE/CE
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6300616
- Report Number(s):
- LA-UR-90-3455; CONF-910478--1; ON: DE91002324
- Country of Publication:
- United States
- Language:
- English
Similar Records
Tribology and mechanical properties of excimer laser mixed Ti--Si--C surface alloys
Tribology and surface mechanical properties of excimer laser nitrided titanium
Related Subjects
360101* -- Metals & Alloys-- Preparation & Fabrication
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALLOYS
AUSTENITIC STEELS
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
EXCIMER LASERS
FRICTION
GAS LASERS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
LASER BEAM MACHINING
LASERS
MACHINING
MATERIALS
MELTING
METALS
MICROSTRUCTURE
NICKEL ALLOYS
PHASE TRANSFORMATIONS
PROCESSING
SILICON CARBIDES
SILICON COMPOUNDS
STAINLESS STEEL-304
STAINLESS STEELS
STEEL-CR19NI10
STEELS
SURFACES
TEMPERATURE EFFECTS
TITANIUM ALLOYS
TRIBOLOGY