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Solid Lubrication at High-Temperatures—A Review
| Content Provider | MDPI |
|---|---|
| Author | Kumar, Rahul Hussainova, Irina Rahmani, Ramin Antonov, Maksim |
| Copyright Year | 2022 |
| Description | Understanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal is majorly governed by the changes in surface reactivity and wear mechanisms. The use of lubricants to minimize friction, wear and flash temperature to prevent seizing is a common approach in engine tribology. However, the degradation of conventional liquid-based lubricants at temperatures beyond 300 °C, in addition to its harmful effects on human and environmental health, is deeply concerning. Solid lubricants are a group of compounds exploiting the benefit of wear diminishing mechanisms over a wide range of operating temperatures. The materials incorporated with solid lubricants are herein called ‘self-lubricating’ materials. Moreover, the possibility to omit the use of conventional liquid-based lubricants is perceived. The objective of the present paper is to review the current state-of-the-art in solid-lubricating materials operating under dry wear conditions. By opening with a brief summary of the understanding of solid lubrication at a high temperature, the article initially describes the recent developments in the field. The mechanisms of formation and the nature of tribo-films (or layers) during high-temperature wear are discussed in detail. The trends and ways of further development of the solid-lubricating materials and their future evolutions are identified. |
| Starting Page | 1695 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma15051695 |
| Journal | Materials |
| Issue Number | 5 |
| Volume Number | 15 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-02-24 |
| Access Restriction | Open |
| Subject Keyword | Materials Manufacturing Engineering Self-lubrication Solid Lubricants Wear Tribology High Temperature Friction Glaze Layer Smart Materials |
| Content Type | Text |
| Resource Type | Article |
