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Ключові слова: трибокорозія, корозійна стійкість, потенціал, струм

поляризації, тертя, знос, вторинні структури, структура, водень, поляризація

покриття, інгібітори, наночастинки, тверді сплави.

ABSTRACT

Vynar V.А. «Scientific basis of friction interaction of metals under the

action of corrosion and hydrogen factors. – Manuscript.

Thesis for a Doctor’s Degree in Technical Sciences (specialty 05.17.14 –

materials chemical resistance and corrosion protection). – Karpenko Physico-

Mechanical Institute of the NAS of Ukraine, Lviv, 2020.

The dissertation presents a solution of an important scientific and practical

problem of establishing mechanisms of frictional interaction of contact surfaces

under the action of corrosion and hydrogen factors, the solution of which expands

the understanding of tribocorrosion mechanisms, which allows a scientifically
well-grounded approaching to choose methods to improve tribopairs.

The method of measuring the electrode potential in tribocorrosion studies
using a capillary probe was improved, which made it possible to more accurately

assess the potential of different sections of the friction track and undeformed

surface.

An empirical relationship between the width of the friction track in

tribocorrosion and the polarization current at the corrosion potential has been

established, which makes it possible to quickly assess the degree of its wear by the

electrochemical properties of the friction pair.

It is established that the ratio between the values of corrosion potential,

tribopotential and freshly renewed surface potential can be used to assess the

frictional properties of secondary structures and the wear mechanism, in particular

the D16T alloy The dual effect of cathodic polarization on the tribocorrosion of

D16T alloy and steel 08Х18Н10Т is shown: reduction of corrosion rate and

fracture inhibition at the potentials below the juvenile surface potential and

increase of corrosion-mechanical wear during hydrogen depolarization. Anodic