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The results of the work have been implemented in the enterprises of

Ukraine, in particular at PAE "Konotop Rebar Plant", LLC "Universal Drilling

Equipment" and the state research and production enterprise "Alcon-Tverdosplav".

Кey words: tribocorrosion, corrosion resistance, potential, polarization

current, friction, wear, secondary structures, structure, hydrogen, coating

polarization, inhibitors, nanoparticles, hard alloys.

Scientific novelty of the obtained results.

The scientific bases of tribocorrosion of steels, alloys and pure metals are

developed, which take into account their flooding in the process of corrosion and

the approaches to the choice of methods of increasing the wear resistance are

shown.

 A new method for estimating the rate of formation and destruction of

secondary structures in the conditions of tribocorrosion and forecasting the

mechanisms of metal destruction is developed and scientifically substantiated,

which is based on comparing the potentials of corrosion, tribocorrosion and freshly

renewed surface. For the first time, an empirical relationship was established

between the weight loss of D16T alloy and the polarization current at the corrosion

potential during corrosion-mechanical wear, which is the basis of the method of

operative determination of the degree of damage of passivating metals in

tribocorrosion.

For the first time:

 It is established that cathodic polarization, depending on the value,

ambiguously affects the destruction of D16T alloy by tribocorrosion: by

polarization within the corrosion potentials and freshly renewed surface corrosion

and corrosion-mechanical wear are inhibited, with the potential shift in the

negative direction due to intensification near-surface alkalinization of the medium

due to hydrogen depolarization.
 It is shown that the frictional interaction with anodic polarization

contributes to the increase of the tendency of steel 08Х18Н10Т to pitting and wear.