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Molecular dynamics simulation of effects of nanoparticles on frictional heating and tribological properties at various temperatures

  • Chengzhi Hu
  • Jizu LvEmail author
  • Minli Bai
  • Xiaoliang Zhang
  • Dawei Tang
Open Access
Research Article


The temperature of a friction pair exerts considerable influence on the tribological behavior of a system. In two cases, one with and the other without Cu (copper) nanoparticles, the temperature increase in friction pairs caused by frictional heating and its tribological properties at various temperatures are studied by using the molecular dynamics approach. The results show that temperature distribution and surface abrasion are significantly improved by the presence of Cu nanoparticles. This is one of the reasons for the improvements in tribological properties achieved in the presence of nanoparticles. The temperature and range of influence of frictional heating for the model without nanoparticles are significantly increased with the increase in the sliding velocity; however, in the model with nanoparticles, the temperature gradient is confined to the area near the Cu film. With an increase in the temperature of the friction pair, the improvement in anti-wear properties associated with the presence of Cu nanoparticles becomes more significant.


nanoparticles molecular dynamics temperature tribological properties 



This work is supported by National Natural Science Foundation of China (Grant No. 51806028, 51876027, 51476019, and 51376002) and the Fundamental Research Funds for the Central Universities (DUT17RC(3)043 and DUT 17JC23).


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Authors and Affiliations

  • Chengzhi Hu
    • 1
  • Jizu Lv
    • 1
    Email author
  • Minli Bai
    • 1
  • Xiaoliang Zhang
    • 1
  • Dawei Tang
    • 1
  1. 1.Laboratory of Ocean Energy Utilization of Ministry of Education, School of Energy and Power EngineeringDalian University of TechnologyDalianChina

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