Dynamic Processes of Self-Organization in Nonstationary Conditions of Friction

Table 4

Indicators of wear and microhardness of friction pairs.

Parameters	Lubricating material
	Sample 1		Sample 2
	Leading surface	Lagging surface	Leading surface	Lagging surface
Wear (micron)	1.039	2.22	2.11	3.1
Microhardness of the surface before the experiment (initial) (MPa)	6082	6438	6476	7717
Microhardness of the surface after the experiment (MPa)	6507 strengthening	7143 strengthening	6176 loss of strength	7618 loss of strength