Abstract
The tribological behaviors of the Ni3Al-WS2-Ti3SiC2 composites and synergistic effect of composite solid lubricants are investigated from room temperature to 800° C. The results show that the Ni3Al matrix composites (NASC) exhibit excellent tribological properties throughout the test temperatures compared to Ni3Al-based alloy. The excellent tribological properties of NASC are attributed to the synergistic lubricating effect ofWS2 and Ti3SiC2. A lubricating film could be formed below 400° C, and an oxidation protection film is formed above 400° C on the worn surface of NASC during the sliding process, leading to low coefficients of friction (0.18-0.39) and wear rates (1.5-3.7 x 10" mm3 N~ mT).
| Original language | English |
|---|---|
| Pages (from-to) | 454-466 |
| Number of pages | 13 |
| Journal | Tribology Transactions |
| Volume | 58 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jan 1 2015 |
| Externally published | Yes |
Keywords
- Coupling Lubricants
- Self-Lubricating Composites
- Solid Lubrication Friction
- Wear Mechanisms
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films