Journal
TRIBOLOGY INTERNATIONAL
Volume 114, Issue -, Pages 322-328Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2017.04.042
Keywords
Metal matrix composites; Solid lubricant; High temperature
Categories
Funding
- National Natural Science Foundation of China [51675510, 51505459]
- National Basic Research Program of China [2013CB632300]
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Solid lubricant materials are promising for high performance machines and mechanical systems. In this paper, the nickel alloy matrix solid lubricant composites containing Ag, BaF2/CaF2 and three different amounts of graphite were prepared by hot pressed sintering method. The tribotests were performed sliding against Si3N4 ball in air from room temperature to 800 degrees C. The effect of graphite content on the tribological behavior of the composites under high temperatures was studied. Micro-Raman, XRD and SEIVI analysis were used to analyze the morphologies and chemical composition of the worn surface and the wear mechanisms were also discussed.
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