The paper scientifically substantiates and implements an integrated approach to creating antifriction
self-lubricating composite nanocoatings based on magnesium compound, forsterite and magnesium-
trialuminum carbide, deposited by detonation spraying. The results of friction and wear processes
under various sliding velocities and a constant load of 12 MPa are presented. The structural-phase
composition and passivating complexes on the friction surface were analyzed using modern physical
methods. The results show that the minimization of wear intensity and friction coefficients is driven by
the formation of a self-regulating structured layer. This layer maintains dynamic equilibrium due to the
additive interaction of graphite (released from carbides), complex oxide structures, and passivating
structures of the matrix phase.
It was established that the formation of a fine-grained surface structure (grain size of 20–35 nm)
activates a rotational deformation mechanism, resulting in high hardness (12.0–15.0 GPa) alongside
with low shear resistance. The magnesium-containing nanocoating exhibits a wear resistance 3.3 to 8.5
times higher than traditional tungsten-containing and nichrome coatings, thereby making them highly
suitable for extreme operating conditions in the aerospace industry and mechanical engineering.
