Tribological Properties of Nano-MMT/In Lubricant Additive on 45^#Steel Tribo-Pair

Abstract:

1:1 MMT/In composite nanopowders were prepared by nanoMMT and nanoIn modified with coupling agent KH550, and the nano-MMT/In lubricating oil dispersion system was prepared by 150N base opl containing 3 mass fraction of nano-MMT/In composite powders, and then took the dispersion effect by laser particle size analyzer ,TEM and IR. The anti-wear and friction-reducing behaviors of that lubricating oil dispersion system were observed on the MMU-10G abrasive-wear tester with 45^#steel tribo-pair, the morphology and the element of the worn surfaces were analyzed by SEM and EDX. The results showed that the grain size of the modified nano-MMT/In was smaller than the one without modification, and the modified nano-MMT/In had the good dispersion in the system; compare with the one in base oil system, the average friction coefficient of sample of 45^#steel tribo-pair in nano-MMT/In additive lubricating oil system had declined by 27.5%, and the total wear mass loss had declined by 63%; The surface of sample after friction had created the self-repairing film that contain the characteristic element of MMT and In, that phenomenon was caused by the interaction of nano-MMT and nano-In.

• Periodical: Key Engineering Materials (Volumes 609-610)
• Pages: 225-231
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.609-610.225
• Online since: April 2014
• Authors: Yang Cao, Yuan Kang Zhou*, Tao Yue Yang, Da Bin Zhang, Lv Yang
• Keywords: 45^#Steel Tribo-Pair, Friction, Lubricant Additive, Nanommt/In, Self-Repairing Film, Wear

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