Implantation of Ti + C for reduced friction and wear of steels
A review of various types of friction and wear tests of ion-implanted steels with 10 to 30 at. % Ti and C shows that the implantation reduces wear and unlubricated friction for every steel examined, even for Hertzian contact stresses in excess of the bulk yield strength. The microscopic information on implanted Fe and steels obtained by TEM, Auger analysis and ion beam analysis is presented, and the near-surface amorphous alloy discovered in similarly implanted Fe is shown to be closely associated with the benefits obtained with the Ti + C treatment of steels. The implanted layer changes the unlubricated sliding wear mode from adhesive to abrasive, and the increased hardness of the amorphous alloy then promotes wear resistance. Recent results suggest that the optimum alloy is obtained by using a high Ti concentration (30 at. %) and by implanting C to produce as thick an amorphous layer as possible.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6567456
- Report Number(s):
- SAND-84-1347C; CONF-841117-2; ON: DE85001606
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microstructures of stainless steels exhibiting reduced friction and wear after implantation with Ti and C. [304; 15-5 PH; Nitronic 60; 440C]
In situ friction and wear measurements of ion implanted 304 stainless steel in nitrogen and oxygen ambients
Related Subjects
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
AMORPHOUS STATE
BEAMS
CARBON
ELECTRON MICROSCOPY
ELEMENTS
FRICTION
ION BEAMS
ION IMPLANTATION
IRON ALLOYS
IRON BASE ALLOYS
METALS
MICROSCOPY
NONMETALS
STEELS
TITANIUM
TRANSITION ELEMENTS
TRANSMISSION ELECTRON MICROSCOPY
WEAR