Zobrazeno 1 - 10 of 30 pro vyhledávání: '"Yu. G. Chabak"'
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Akademický článek
Current Functional Materials for Wear-Resistant Casting: from Multicomponent Cast Irons to Hybrid High-Boron Alloys
Autor: Yu. G. Chabak, V. I. Zurnadzhy, M. A. Golinskyi, V. G. Efremenko, N. P. Zaichuk, I. Petryshynets, and S. P. Shymchuk
Publikováno v: Успехи физики металлов, Vol 23, Iss 4, Pp 583-612 (2022)
The results obtained in the last two decades in the development of functional tribological alloys for the castings working under severe abrasion, erosion, and erosion–corrosion conditions are reviewed. The chemical composition, microstructural feat
Externí odkaz: https://doaj.org/article/fb9056f9b9da484d9985ef4ea9de940e
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2
Akademický článek
EFFECT OF ALLOYING ON TEMPERATURE OF TRANSFORMATION «PEARLITE – AUSTENITE» IN COMPLEX-ALLOYED WHITE CAST IRONS
Autor: T. V. Pastukhova, V. G. Efremenko, A. P. Cheiliakh, K. Shimizu, Yu. G. Chabak
Publikováno v: Nauka ta progres transportu, Vol 55, Iss 1, Pp 113-121 (2014)
Purpose. Pearlite is not accepted in the microstructure of wear resistant steels and cast irons. To prevent the pearlite by means of appropriate selection of mode of quenching requires the knowledge of the temperature of the critical points Ac1 and A
Externí odkaz: https://doaj.org/article/5cc71c99c0764eed87ad3c61bc8aef56
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3
Akademický článek
TO SELECTION OF TECHNOLOGICAL SCHEME OF SOFTENING HEAT TREATMENT FOR HIGH CHROMIUM CAST IRON
Autor: V. G. Efremenko, YU. G. Chabak, K. Shimizy, A. V. Dzherenova, B. V. Efremenko
Publikováno v: Nauka ta progres transportu, Vol 50, Iss 2, Pp 103-110 (2014)
Purpose. High chromium cast irons with austenitic matrix have low machinability. The aim of work is search of new energy-saving modes of preliminary softening heat treatment enhancing the machinability of castings by forming an optimum microstructure
Externí odkaz: https://doaj.org/article/1f8fb17fbe154ed8b060d1177354ffea
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4
Characterization of Microstructure and Phase Elemental Composition of 15 wt.% Cr – 2 wt.% Mo Cast Iron with Boron Addition
Autor: A. A. Malyshevskyi, Ivan Petryshynets, K. Shimizu, Hossam Halfa, B. V. Efremenko, V. G. Efremenko, Kaiming Wu, V. I. Zurnadzy, Yu. G. Chabak
Publikováno v: Practical Metallography. 57:714-742
The article is aimed at the study of structural features and phase chemical composition in 3.6 wt.% C-15 wt.% Cr-2 wt.% Mo cast iron prepared with adding 0.50 wt.% boron. The work was fulfilled using optical and electron scanning microscopy, EDS, XRD
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44dc3f0885ba6598a049665c89690940
https://doi.org/10.3139/147.110683
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5
Quenching and Partitioning–Based Heat Treatment for Rolled Grinding Steel Balls
Autor: Kaiming Wu, Angeliki G. Lekatou, V. G. Efremenko, D. S. Zotov, Yu. G. Chabak, V. I. Zurnadzhy, E. V. Dunayev, K. Shimizu
Publikováno v: Metallurgical and Materials Transactions A. 51:3042-3053
A “Quenching and Partitioning” (Q&P)–based heat treatment has been applied to rolled grinding steel (0.75 wt pct C-Mn-Cr) balls of 104-mm diameter to prevent their cracking during heat treatment. The conventional route of ball manufacturing inc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b28b972dfdba3f247cb3843a0ccb38a
https://doi.org/10.1007/s11661-020-05737-w
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6
Effect of scheme of rolling and post-deformation cooling on mechanical properties of rolled sheet made of V−Nb−Al-alloyed steel
Autor: D. S. Zotov, V. G. Efremenko, Yu. G. Chabak, V. E. Stavrovskaya, V. I. Zurnadzhy, R. I. Sagirov
Publikováno v: Physical Metallurgy and Heat Treatment of Metals. :70-75
Problem statement . Structural steel products are the bulk of the production of modern metallurgy. It is advisable to increase the mechanical properties of rolled products in the framework of technologies involving the use of rolling heating, which s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::273ce7615bfc66788833ccf2c8354422
https://doi.org/10.30838/j.pmhtm.2413.260319.70.304
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7
Effects of stress relief tempering on microstructure and tensile/impact behavior of quenched and partitioned commercial spring steel
Autor: V. I. Zurnadzhy, M.V. Pomazkov, Yu. G. Chabak, Kaiming Wu, A.Yu. Azarkhov, O. Isayev, V.L. Greshta, V. G. Efremenko
Publikováno v: Materials Science and Engineering: A. 745:307-318
The primary aim of the present study was to investigate the impacts of tempering (at 200–300 °C) on microstructure and mechanical properties of commercial spring steel of 60Si2CrV grade under “Quenching and Partitioning” heat treatment. Three
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::717818dc4e2a11306d1d5174f0cddd79
https://doi.org/10.1016/j.msea.2018.12.106
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10
Alternative Heat Treatments for Complex-Alloyed High-Cr Cast Iron Before Machining
Autor: K. Shimizu, O. Isayev, Yu. G. Chabak, V. G. Efremenko, V. V. Kudin, Kaiming Wu
Publikováno v: Metallurgical and Materials Transactions A. 49:3430-3440
Four heat treatment schedules were applied to 14.6 wt pct Cr-2.2 wt pct Mn-1 wt pct Ni cast iron to improve its machinability: (a) one-step continuous annealing [holding at 1123 K (950 °C), 2 hours, cooling at 20 to 150 K/h], (b) three-step isotherm
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::119fadd65aa6591802b8cb358f466bbd
https://doi.org/10.1007/s11661-018-4722-0
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