Friction and wear of radiofrequency-sputtered borides, silicides, and carbides
The friction and wear properties of several refractory compound coatings were examined. These compounds were applied to 440 C bearing steel surfaces by radiofrequency (RF) sputtering. The refractory compounds were the titanium and molybdenum borides, the titanium and molybdenum silicides, and the titanium, molybdenum, and boron carbides. Friction testing was done with a pin-on-disk wear apparatus at loads from 0.1 to 5.0 newtons. Generally, the best wear properties were obtained when the coatings were bias sputtered onto 440 C disks that had been preoxidized. Adherence was improved because of the better bonding of the coatings to the iron oxide formed during preoxidation. As a class the carbides provided wear protection to the highest loads. Titanium boride coatings provided low friction and good wear properties to moderate loads.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- OSTI ID:
- 6446835
- Report Number(s):
- N-78-20338; NASA-TP-1156; E-9384
- Country of Publication:
- United States
- Language:
- English
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XPS study of the adherence of refractory carbide, silicide, and boride rf-sputtered wear-resistant coatings
THE ANALYSIS OF REFRACTORY BORIDES, CARBIDES, NITRIDES, AND SILICIDES
Related Subjects
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALLOYS
BORIDES
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON ADDITIONS
CARBON COMPOUNDS
CARBON STEELS
CHROMIUM ALLOYS
CHROMIUM STEELS
COATINGS
CORROSION RESISTANT ALLOYS
DEPOSITION
FRICTION
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MOLYBDENUM BORIDES
MOLYBDENUM CARBIDES
MOLYBDENUM COMPOUNDS
MOLYBDENUM SILICIDES
SILICIDES
SILICON COMPOUNDS
STAINLESS STEEL-440
STAINLESS STEELS
STEELS
TITANIUM BORIDES
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TITANIUM SILICIDES
TRANSITION ELEMENT COMPOUNDS
WEAR
WEAR RESISTANCE