Registration Number
0226U004116,
(0125U003590)
, R & D reports
Title
Laser processing to enhance the properties of metallic materials.
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Лазерна обробка для підвищення властивостей металевих матеріалів.
Head
Efremenko Vasiliy , Доктор технічних наук
Registration Date
01-07-2026
Organization
State Higher Educational Institution "Azov State Technical University"
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Determination the effect of a laser beam on the microstructure, tribological and corrosion properties of Inconel 718 alloy manufactured by additive technology.
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Рhase and structural transformation processes, abrasive and corrosion wear resistance in laser-modified Inconel 718 type alloys. The work aims to determine the effect of the laser beam on the microstructure, tribological, and corrosion properties of an Inconel 718 alloy fabricated via additive manufacturing.
Research methods: optical and electron microscopy, energy-dispersive spectroscopy, microhardness measurement, X-ray diffraction analysis, nanoindentation, tribological testing, reverse potentiodynamic polarization, and sliding wear testing in a highly ionic electrolyte.
The work describes the microstructure, phase state, tribological, and corrosion characteristics of a nickel-based superalloy fabricated via LPBF printing and subsequently subjected to laser processing. The influence of laser processing parameters on the phase and structural state, hardness, and wear resistance of the alloy during testing in a corrosive liquid was determined. It was established that laser modification reduced hardness from 4.3 GPa to 3.3 GPa due to microstructural coarsening. Despite this hardness reduction, the wear performance was maintained due to material densification, the lubricating action of oxides, and the presence of hard intermetallic phases. The resistance to localized and general corrosion deteriorated due to microstructural coarsening and the precipitation of secondary phases that disrupted the passive film or acted as cathodic sites.
Product Description
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Yefremenko Vasyl H.
Dzherenova Antonina V.
Yuliia H. Chabak
Olena V. Tsvetkova
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2026-07-01
