title: An Investigation on the Tribological Performances of the SiO2/MoS2 Hybrid Nanofluids for Magnesium Alloy-Steel Contacts.
abstract: Hybrid nano-materials offer potential scope for an increasing numerous novel applications when engineered to deliver availably functional properties. In the present study, the SiO2/MoS2 hybrid nanoparticles with different mass ratios were employed as lubricant additives in the base oil, and their tribological properties were evaluated using a reciprocating ball-on-plate tribometer for magnesium alloy-steel contacts. The results demonstrate that the SiO2/MoS2 hybrid nanoparticles exhibit superior lubrication performances than individual nano-SiO2 or nano-MoS2 even in high load and diverse velocity cases. The optimal SiO2/MoS2 mixing ratio and the concentration of SiO2/MoS2 hybrid nanoparticles in the base oil are 0.25:0.75 and 1.00-1.25 wt%, respectively. The excellent lubrication properties of the SiO2/MoS2 hybrid nanoparticles are attributed to the physical synergistic lubricating actions of nano-SiO2 and nano-MoS2 during the rubbing process.
authors.affiliation: State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China.|College of Mechanical and Electrical Engineering, Yangtze Normal University, Chongqing, 408100, China.
authors.forename: Hongmei
authors.initials: H
authors.lastname: Xie
authors.affiliation: State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China. jiangbinrong@cqu.edu.cn.|Chongqing Academy of Science and Technology, Chongqing, 401123, China. jiangbinrong@cqu.edu.cn.
authors.forename: Bin
authors.initials: B
authors.lastname: Jiang
authors.affiliation: Chongqing Chang-an Automobile Co., Ltd, Chongqing, 400023, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China.
authors.forename: Qinghang
authors.initials: Q
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China.
authors.forename: Junyao
authors.initials: J
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China.|Chongqing Academy of Science and Technology, Chongqing, 401123, China.
authors.forename: Fusheng
authors.initials: F
authors.lastname: Pan
keywords: Friction and wear; Lubricant additive; Magnesium alloy; SiO2/MoS2 hybrid nanoparticles