Abstract
Diamond-like-carbon (DLC) films was deposited on H13 steel substrate by plasma enhanced chemical vapor deposition technology. The friction behavior of self-mated DLC films was investigated by a high temperature friction and wear tester under high temperature friction conditions in the atmosphere. The results show that the friction behavior of DLC films is deteriorated with increase of temperature. At the initial stage, coefficient of friction (COF) decreases with increase of temperature below 400℃. However, COF is as high as 0.8 at 400℃. Further more the friction behavior of DLC films and substrate in air was also investigated based on thermodynamics. The tribochemical reactions are analyzed by using Gibbs free energy criterion, it is found that the theoretical results are in agreement with the experiment data. The results can provide the reference for design and research of the tribological properties of DLC films at elevated temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 151-155 |
| Number of pages | 5 |
| Journal | Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment |
| Volume | 35 |
| Issue number | 9 |
| State | Published - 25 Sep 2014 |
Keywords
- DLC films
- Friction behaviors at elevated temperature
- Thermodynamic analysis
- Tribochemical reaction
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