期刊
MATERIALS & DESIGN
卷 55, 期 -, 页码 93-103出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2013.09.072
关键词
Sliding friction and wear; Self-lubricating composites; Tribological behavior; Wear mechanisms
资金
- Project for Science and Technology Plan of Wuhan City [2013010501010139]
- National Natural Science Foundation of China [51275370]
- Nature Science Foundation of Hubei Province [2012FFB05104]
- Fundamental Research Funds for the Central Universities [2013-ZY-049]
- Program for New Century Excellent Talents in University
- Academic Leader Program of Wuhan City [201150530146]
- Wuhan University of Technology [2012016]
NiAl matrix self-lubricating composites with MoS2 and Ti3SiC2 lubricants were prepared by spark plasma sintering. The tribological behaviors of the NiAl-Ti3SiC2-MoS2 composites against Si3N4 were investigated from room temperature to 800 degrees C. The results showed that the composites exhibited excellent self-lubricating and anti-wear properties over a wide temperature range. At 400 degrees C, the composites containing 5Ti(3)SiC(2)-5MoS(2) (wt.%) had a very low friction coefficient of about 0.13 and a low wear rate of 4.5 x 10 (5) mm(3) N (1) m (1). MoS2 played the main role of lubrication at low temperatures, while Ti3SiC2 was responsible for low friction at high temperatures. Ti3SiC2 and MoS2 lubricants in the NiAl-Ti3SiC2-MoS2 composites showed the excellent synergetic lubricating effect over a wide temperature range from room temperature to 800 degrees C. (C) 2013 Elsevier Ltd. All rights reserved.
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