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The Enhanced Tribological Properties of NiAl Intermetallics: Combined Lubrication of Multilayer Graphene and WS2

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In recent years, reducing friction and wear-related adverse impacts on efficiency and durability in moving mechanical systems has gained increased attention. Herein, the search continues for novel materials and lubricants that can potentially reduce friction and wear. As one of the emerging self-lubricating materials, the tribological potential of graphene has been researched deeply. This article was dedicated to explore the combined lubrication of multilayer graphene (MLG) and WS2. The as-prepared sample of NiAl–1.5 wt% MLG–5 wt% WS2 (NB) exhibited excellent tribological properties. During the sliding process, a continuous lubricating film was formed to provide the low-strength junctions at the interface, reducing the friction coefficient and wear rate. Moreover, the MLG played the role of reinforcement particles and improved loading carrying ability.

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This work was supported by the National Natural Science Foundation of China (51275370); the Nature Science Foundation of Hubei Province (2012FFB05104); the Fundamental Research Funds for the Central Universities (2014-yb-004); the Project for Science and Technology Plan of Wuhan City (2013010501010139); the Academic Leader Program of Wuhan City (201150530146); and the Project for Teaching and Research project of Wuhan University of Technology (2012016). The authors also wish to gratefully thank the Material Research and Testing Center of Wuhan University of Technology for their assistance.

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Correspondence to Xiaoliang Shi.

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Yao, J., Shi, X., Zhai, W. et al. The Enhanced Tribological Properties of NiAl Intermetallics: Combined Lubrication of Multilayer Graphene and WS2 . Tribol Lett 56, 573–582 (2014). https://doi.org/10.1007/s11249-014-0439-4

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  • Self lubrication friction
  • Self-lubricating composites
  • Solid lubricants
  • Solid lubrication mechanisms
  • Solid lubrication wear