EFFECT OF NANOPARTICLES ON THE RUNNING-IN BEHAVIOR IN LUBRICATED POINT CONTACT
In the current work, the anti-wear behavior of lubricants with Nano-particles copper oxide (CuO) and zinc oxide (ZnO) during running-in period is experimentally studied. The experiments are performed using a pin-on-disk test rig. The selected variables are type and quantity of nanoparticles. Running-in distance (L_r), initial friction coefficient (μ_0), steady-state friction coefficient (μ_s) and disks’ weight loss (WL) are measured in this study. The results illustrate that the nanoparticles improve the tribological properties. The results show that Oil No. 10 (1 wt% CuO and 0.5% ZnO) has generally the best performance compared to the other lubricants which reduces the initial friction coefficient, steady-state friction coefficient, and weight loss up to 16%, 23%, and 60%, respectively.