Page 7 - НАЦІОНАЛЬНА АКАДЕМІЯ НАУК УКРАЇНИ

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• ПД 90Х17РГС – покриття з твердістю (850...1000) HV 0,3, що експлуату-

ються у надскладних (з доступом абразиву) умовах.

Ключові слава: анодований шар, гідрооксид алюмінію, плазмоелектролітне

оксидування, електродугове покриття, надзвуковий повітряний струмінь,

дисперсійно-зміцнювальніючі фази, ламелі покриття.

ANNOTATION

Gvozdetskiy V.M. Scientific bases for increasing wear resistance of coatings

on aluminum and steel products by controlled formation of their structural-phase

state. – manuscript rights.

Dissertation for the degree of Doctor of Technical Sciences in specialty 05.02.01

– Materials Science. – Karpenko Physico-Mechanical Institute of the National

Academy of Sciences of Ukraine, Lviv, 2025.

The dissertation work presents a solution to an important scientific and technical

problem – by transforming the phase-structural state of surface layers of aluminum

alloys and steels using improved technological techniques and developed cored wires

for the arc spraying of coatings with predetermined properties, the operability of new

and restored parts was increased after their operation under conditions of the boundary

lubrication and abrasive wear for critical equipment of key industries of Ukraine.

The main regularities of the formation of hard anodic coatings and plasma-

electrolytic layers and supersonic arc coatings with specified functional characteristics

for increasing the wear resistance of products made of aluminum alloys and steels for
the needs of key industries, agricultural, food processing, mining and defense, based on

the established regularities of the influence of the composition of the electrolytes and
the synthesis modes of layers, the component composition of the cored wire with an

exothermic charge and the technological parameters of the application on the formation

of their structure, phase composition and wear resistance under conditions of the

boundary friction and abrasive wear, were determined. The methodological approaches

to the formation of a two-phase anodized layer with increased wear resistance were

developed. The main layer was dominated by a boehmite phase with a high hardness of