期刊
TRIBOLOGY INTERNATIONAL
卷 60, 期 -, 页码 224-232出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2012.10.024
关键词
Nanoparticles; Mineral oil; Friction coefficient; Wear
Tribological investigations were performed on mineral oil containing Fe, Cu and Co nanoparticles and their combinations. The tribological tests showed that each set of nanoparticles significantly reduced the friction coefficient and wear (up to 1.5 times) of friction pairs. The use of Cu nanoparticles provides the most effective reduction of friction and wear in each combination of nanoparticles. Surface analysis shows that the constituent elements of nanoparticles precipitated on the contact surface during the use of the oils with nano-additives. Different structures formed on the friction surface are observed in the contact zone and over the remainder of the ball surface. The SEM micrographs and EDX chemical analysis confirm the formation of a tribo-layer composed of the elements from the nanoparticles. (C) 2012 Elsevier Ltd. All rights reserved.
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