Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 48, Issue 30, Pages 3727-3733Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998313513048
Keywords
Metal matrix composite; graphene nanoplates; sliding friction; solid lubrication
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Funding
- Nature Science Foundation of Hubei Province [2012FFB05104]
- National Natural Science Foundation of China [51275370]
- Fundamental Research Funds for the Central Universities [2013-ZY-049]
- Program for New Century Excellent Talents in University
- 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]
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The main objective of this work has been the characterization of wear behavior of the graphene nanoplates (GNPs) in Ni3Al matrix composites (NMC). The friction and wear behaviors of NMC with the addition of 1wt.% GNPs against Si3N4 ball are tested under different loads using a constant speed of 0.2m/s. Tribological test results have revealed that small amounts of GNPs are able to drastically improve the antifriction and antiwear properties of NMC. A possible explanation for these results is that, the GNPs not only provide an enhanced effect for NMC to produce better wear resistance, but also form a local protective layer on the contact surfaces to reduce the friction. The investigation shows that GNPs hold great potential applications as an effective solid lubricant for Ni3Al matrix composites and possibly other alloys.
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