Wear kinetics of contact surfaces with use of C60 fullerene additive to motor oil

It is shown that under nonstationary friction conditions, the wear resistance of contact surfaces increases when antifriction nanodisperse C-60 fullerene is added to the ESSO SAE 10w40 motor oil. The effect is attributed to a polymerization diamondlike molecular layer arising on the friction-activated metal surface, which leads to decreasing of the softening rate of the 40X steel surface layers and increasing of the hardening rate of the surface layers of SCh 32-52 cast iron.