Effect of Silver and Carbon Fiber on the Tribological Properties of M50 Matrix Composites Under Different Loads
- Wuhan University of Technology, Reliability Engineering Institute, School of Energy and Power Engineering (China)
- Wuhan University of Technology, School of Mechanical and Electronic Engineering (China)
As one of the most widely used high-performance bearing steels, the service life of M50 steel is closely related to its tribological properties. In this paper, the dry sliding tribological tests of M50 matrix composite containing 5.0 wt.% Ag and 5.0 wt.% carbon fiber (CF) against Si{sub 3}N{sub 4} ceramic balls are carried out under different applied loads. The morphologies and compositions of worn surfaces and the cross sections of worn scars are systematically characterized to explore the wear mechanisms. The results indicate that M50-Ag-CF composites (MAC) exhibit the excellent tribological properties at 10 N, whose friction coefficient and wear rate are 0.212 and 1.6 × 10{sup −6} mm{sup 3} N{sup −1} m{sup −1}, respectively. The excellent tribological performance can be attributed to the synergistic effect of Ag and CF. Massive Ag is enriched on the friction surface to form a lubricating film, thus reducing the surface roughness and friction coefficient. Meanwhile, CF acts as a reinforcement and improves the wear resistance of M50 matrix composites.
- OSTI ID:
- 22970938
- Journal Information:
- Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 2 Vol. 28; ISSN 1059-9495; ISSN JMEPEG
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Sliding Wear and Frictional Behavior of M50-10 wt.%(Sn-Ag-Cu) Self-Lubricating Materials at Elevated Temperatures
Tribological Properties of NiAl Matrix Composites Filled with Serpentine Powders