Journal
TRIBOLOGY LETTERS
Volume 55, Issue 3, Pages 393-404Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-014-0367-3
Keywords
Self-lubricating composites; Solid lubricant additives; Solid lubrication mechanisms; Self-lubricated wear
Categories
Funding
- National Natural Science Foundation of China [51275370]
- Nature Science Foundation of Hubei Province [2012FFB05104]
- Fundamental Research Funds for the Central Universities [2013-ZY-049]
- Project for Science and Technology Plan of Wuhan City [2013010501010139]
- Academic Leader Program of Wuhan City [201150530146]
- Project for Teaching and Research project of Wuhan University of Technology [2012016]
- Program for New Century Excellent Talents in University
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More durable, low-friction self-lubricating materials in modern industry are greatly needed for tribological systems. The current paper presents the tribological performance of TiAl matrix self-lubricating composites (TSC) containing MoS2, hexagonal BN and Ti3SiC2 designated as MhT against GCr15 steel counterface under several sliding speeds from 0.2 to 0.8 m s(-1) and applied loads from 6 to 12 N. The results suggested that MhT played an important role in decreasing friction coefficients and wear rates. The covering percentage of transfer layers on worn surfaces varied with the changing of sliding speeds and applied loads, hence resulting in the distinct friction and wear characteristics of TSC. TSC containing 10 wt% MhT exhibited the best excellent tribological performance at 10 N-0.8 m s(-1), which could be due to the formation of the best compaction and largest coverage of transfer layer on the worn surfaces.
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