Abstract
Friction and wear properties of steel against aluminum were evaluated on a ring-on-block tribotester. The tests were carried out under lubrication of liquid paraffin (LP) alone and liquid paraffin containing oleic acid surface-modified Cu nanoparticles. Effects of concentration and load on the tribological properties of Cu nanoparticles were investigated. LP containing 0.25% Cu nanoparticles exhibited the best tribological properties and good wear resistance and friction reduction at different loads, especially at applied loads between 50 N and 125 N. Thin copper film formed and spread out on metal surface, which provided low shear strength, prevented transfer of Al to steel surface and reduced friction and wear.
| Original language | English |
|---|---|
| Pages (from-to) | 433-438 |
| Number of pages | 6 |
| Journal | Mocaxue Xuebao/Tribology |
| Volume | 26 |
| Issue number | 5 |
| Publication status | Published - Sept 2006 |
| Externally published | Yes |
Keywords
- Cu nanoparticles
- Cu protective film
- Friction and wear behavior
- Lubricating oil additive
- Steel/aluminum tribopair