Abstract
Self-lubricating materials are particularly suitable used in the advanced mechanical motion systems with extreme conditions such as high temperature, high-speed and heavy-loading. In this paper, a high-temperature self-lubricating composite, Fe3Al with embedded Ba0.25Sr0.75SO4 solid lubricant are prepared by hot-pressed sintering technique. Meanwhile, the effects of Ba0.25Sr0.75SO4 fraction on microstructure, hardness and high-temperature tribological properties of the composites are investigated. The results show that the high-temperature tribological properties of the Fe3Al alloy are greatly improved by the addition of Ba0.25Sr0.75SO4, and the wear mechanism transforms from fatigue wear to abrasion wear.
Original language | English |
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Pages (from-to) | 81-87 |
Number of pages | 7 |
Journal | Tribology International |
Volume | 101 |
DOIs | |
State | Published - 1 Sep 2016 |
Externally published | Yes |
Keywords
- FeAl based composites
- Friction and wear
- High temperature
- Self-lubricating composites