期刊
MATERIALS & DESIGN
卷 55, 期 -, 页码 75-84出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2013.09.051
关键词
Self-lubricating composites; Spark plasma sintering; Dry sliding wear; Solid lubricants
资金
- Nature Science Foundation of Hubei Province [2012FFB05104]
- National Natural Science Foundation of China [51275370]
- 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]
- Wuhan University of Technology [2012016]
Ni3Al matrix self-lubricating composites (NMSC) containing varied amounts of WS2, Ag and hBN (WAh) with weight ratio of 1:1:1 were fabricated by in situ technique using spark plasma sintering. The friction and wear properties of NMSC against the commercial Si3N4 ceramic ball at the load of 10 N and sliding speed of 0.234 m/s for 80 min from room temperature to 800 degrees C were investigated. The results showed that the tribological properties of NMSC strongly depended on the addition content of WAh. Moreover, NMSC with 15 wt.% WAh and 5 wt.% TiC exhibited the relatively lower friction coefficients and the less wear rates from RT to 800 degrees C. The excellent tribological behavior of NMSC with 15 wt.% WAh and 5 wt.% TiC was attributed to the synergetic action of composite lubricants of WAh and reinforced phase of TiC. (C) 2013 Elsevier Ltd. All rights reserved.
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