| 1. |
Tarelnyk N.♦, Hlushkova D.♦, Haponova O., Konoplianchenko I.♦, Skrypnikov V.♦, Influence of electrospark alloying parameters on steel surface quality during nitrocarburizing,
Functional Materials, ISSN: 1027-5495, DOI: 10.15407/fm32.02.223, Vol.32, No.2, pp.223-231, 2025 Streszczenie:
In the article, due to the conducted research, there have been established the dependences of the quality parameters of the steel part surfaces while nitrocarburizing thereof by the ESA method on the energy parameters of the equipment (discharge energy, Wр) and the technological parameters of the process (labor intensity, τ). The experimental studies have shown that with an increase in the discharge energy there increases the thickness of the strengthened layer, and its microhardness, as well as the surface roughness and its continuity. With an increase in the labor intensity, the thickness of the strengthened layer, its microhardness, and the surface continuity also increase, and the surface roughness almost does not change Słowa kluczowe:
electrospark alloying, special technological saturating media, nitrocarburizing, surface layer, quality parameters Afiliacje autorów:
| Tarelnyk N. | - | Sumy National Agrarian University (UA) | | Hlushkova D. | - | inna afiliacja | | Haponova O. | - | IPPT PAN | | Konoplianchenko I. | - | inna afiliacja | | Skrypnikov V. | - | inna afiliacja |
|  | 20p. |
| 2. |
Tarelnyk V.♦, Haponova O.♦, Konoplianchenko V.♦, Tarelnyk N.♦, Dumanchuk M.♦, Pirogov V.♦, Voloshko T.♦, Hlushkova D.♦, Development of a System Aimed at Choosing the Most Effective Technology for Improving the Quality of Babbitt Coatings of Sliding Bearings. Pt. 2. Mathematical Model of Wear of Babbitt Coatings. Criteria for Choosing the Technology of Deposition of Babbitt Coatings,
Metallofizika i Noveishie Tekhnologii, ISSN: 1024-1809, DOI: 10.15407/mfint.44.12.1643, Vol.44, No.12, pp.1643-1659, 2022Streszczenie:
In the article, a direct choice system of the most rational technology for applying a babbitt coating on the liners of sliding bearings (SB) is developed, which takes into account both economic and environmental requirements. On the basis of the performed research, a physically substantiated mathematical model of the babbitt-coatings’ wear process (wear equation) is proposed, which allows solving both the direct problem of determining weight and linear wears based on the known work of friction, as well as the inverse problem of finding the necessary work of friction to obtain the required amount of weight or linear wears. With knowing the time to reach a certain amount of wear, it becomes possible to operate the products more rationally, timely assigning the repair time and friction-surface catastrophic-wear preventing. In the course of research, a methodology is developed for determining the constants of the wear equation: activation energy (EA) as well as maximum weight (Δmб.п.н) and linear (Δhб.п.н) wears, which can be used as selection criteria for the most rational technology of applying a babbitt coating. Słowa kluczowe:
sliding bearing, babbitt, coating, wear, structure, transition layer, adhesion strength, electrospark alloying, mathematical model Afiliacje autorów:
| Tarelnyk V. | - | Sumy National Agrarian University (UA) | | Haponova O. | - | inna afiliacja | | Konoplianchenko V. | - | inna afiliacja | | Tarelnyk N. | - | Sumy National Agrarian University (UA) | | Dumanchuk M. | - | inna afiliacja | | Pirogov V. | - | inna afiliacja | | Voloshko T. | - | inna afiliacja | | Hlushkova D. | - | inna afiliacja |
|  | 40p. |
