Influence of Laser Thermal Cycling on the Structure Evolution and Tribological Properties of Plasma Coatings
| Authors | M.V. Kindrachuk1 , V.V. Kharchenko1, O.I. Volchenko2 , V.Ye. Marchuk1 , I.A. Humeniuk1, A.V. Voznyi2 |
| Affiliations |
1State University “Kyiv Aviation Institute”, 03058 Kyiv, Ukraine 2Ivano-Frankivsk National Technical University of Oil and Gas, 76019 Ivano-Frankivsk, Ukraine |
| Е-mail | myroslav.kindrachuk@npp.nau.edu.ua |
| Issue | Volume 17, Year 2025, Number 2 |
| Dates | Received 20 December 2024; revised manuscript received 23 April 2025; published online 28 April 2025 |
| Citation | M.V. Kindrachuk, V.V. Kharchenko, et al., J. Nano- Electron. Phys. 17 No 2, 02013 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(2).02013 |
| PACS Number(s) | 81.40.Pq, 62.20.Qp, 46.55. + d, 81.40.Gh, 61.66.Dk |
| Keywords | Wear resistance (2) , Thermocyclic treatment, Plasma coating, Wear (3) , Adhesive strength, Laser melting, Eutectic alloys. |
| Annotation |
The paper presents a comprehensive study of the structure and properties of plasma eutectic coatings after thermocyclic treatment (TCT). It is shown that such treatment significantly increases the adhesive and cohesive strength of coatings. It has been found that the wear resistance of two-layer coatings in the entire temperature range is higher than for single-layer ones. This is primarily due to the increase in adhesive properties, a decrease in the hardness gradient along the coating depth, and an increase in the thermal stability of the coating due to the barrier properties of the boride-alloyed layer. By controlling the size of the dispersed crystals of the penetration phases along with the state of the metal matrix, it is possible to select such TCT modes at which the coatings can acquire optimal tribological properties. It was found that the wear resistance of the original plasma coating and after thermal cycling is approximately the same, which can be explained by the complete decomposition of solid metastable structures and intensive oxidation of the coatings due to their porosity. It is shown that the wear resistance of two-layer coatings is higher than that of single-layer coatings in the entire temperature range, which is primarily due to the increase in adhesion properties and increased thermal stability of the coating due to the properties of the layer doped with borides. |
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List of References |
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