Influence of external load on friction coefficient of Fe–polytetrafluoroethylene
Hao Xiu-Hong1, 2, Pan Deng1, 2, †, Zhang Ze-Yang1, Wang Shu-Qiang1, 2, Gao Yu-Jin3, Gu Da-Peng1, 2
       

Fe–PTFE friction model: (a) initial distribution of the Fe beads and PTFE beads, (b) random distribution of the PTFE beads, (c) compressed PTFE molecules, (d) equilibrium distribution of the PTFE molecules, (e) compressed Fe layer, (f) equilibrium distribution of the Fe beads, (g) final distribution of the Fe and PTFE beads.