Abstract
Tribological properties of a nano-eutectic Fe 1.87C 0.13 alloy were investigated under distilled-water lubrication against AISI52100 steel ball for various applied loads and sliding speeds. For comparison, the tribological behavior of annealed coarse-grained Fe 1.87C 0.13 alloy was also examined under the same testing conditions. Worn surfaces of both alloys were analyzed by using a scanning electron microscope (SEM). The wear rate of nano-eutectic Fe 1.87C 0.13 alloy was on the order of 10 -5 mm 3/m. The wear rate of nano-eutectic Fe 1.87C 0.13 alloy was higher than that of annealed Fe 1.87C 0.13 alloy at lower load, but lower under higher load. The friction coefficients of the two alloys were similar and exhibited a slight increase with increasing sliding speed, but a small decrease with increasing applied load. The wear mechanism of the nano-eutectic Fe 1.87C 0.13 alloy was transformed from plowing and corrosion wear to slight fatigue cracking with increasing applied load, whereas that of the annealed coarse-grained Fe 1.87C 0.13 alloy was transformed from plowing and corrosion wear to severe fatigue flaking.
| Original language | English |
|---|---|
| Pages (from-to) | 105-111 |
| Number of pages | 7 |
| Journal | Tribology Letters |
| Volume | 40 |
| Issue number | 1 |
| DOIs | |
| State | Published - Oct 2010 |
| Externally published | Yes |
Keywords
- Nanostructured material
- Sliding friction
- Water lubrication
- Wear