APPLICATION OF ELECTROLYTIC PLASMA HARDENING FOR IMPROVING THE PROPERTIES OF MACHINE PARTS MADE OF STEEL 45

This study examined the effect of electrolytic plasma hardening (EPH) on the properties of 45-grade steel, which can serve as an alternative to traditional heat treatment methods used before the release of finished products. The results of the experiments showed that the mechanical and operational properties of 45-grade steel significantly improved after the application of EPH. Steel 45, widely used in mechanical engineering and agricultural machinery production due to its strength characteristics and durability, demonstrated a significant increase in performance after treatment. It was observed that the properties of 45- grade steel improved considerably after applying electrolytic plasma hardening methods, with the hardness of the samples increasing by 3.1-3.62 times, and wear resistance improving by 7 times. Moreover, the study highlighted the economic efficiency of the proposed treatment method, showing that the introduction of EPH can lead to a significant reduction in material costs, extended product life, and improved environmental performance by reducing energy consumption and emissions. The use of a non-toxic 20% sodium carbonate solution in EPH contributed to the uniform distribution of electric current in the cell and allowed for achieving optimal cooling rates of the sample.

1. Kulikov I. Ehlektrolitno-plazmennaya obrabotka materialov / I.S. Kulikov, S.V. Vashchenko, A.YA. Kamenev; Natsional'naya akademiya nauk Belarusi; Ob"edinennyi institut ehnergeticheskikh i yadernykh issledovanii «SosnY». – Minsk: Belaruskaya navuka, 2010. – 231 s. (In Russian).

2. Modifikatsiya poverkhnosti stali 30KHGSA s primeneniem ehlektrolitno-plazmennogo termotsiklicheskogo uprochneniya / B.K. Rakhadilov i dr. // Novye materialy i tekhnologii: poroshkovaya metallurgiya, kompozitsionnye materialy, zashchitnye pokrytiya, svarka. – 2022. – S. 610-616. (In Russian).

3. Rakhadilov B. et al. The impact of technological parameters of electrolytic-plasma treatment on the changes in the mechano-tribological properties of steel 45 //AIMS Materials Science. – 2024. – T. 11. – №. 4. – S. 666-683. (In English).

4. Rakhadilov B.K. Issledovanie iznosostoikosti poverkhnostnogo sloya stali 40khn posle ehlektrolitno-plazmennogo vozdeistviya / B.K. Rakhadilov, ZH.B. Sagdoldina, A.B. Kenesbekov // Nauchno-tekhnicheskii zadel – osnova ehffektivnogo innovatsionnogo razvitiya. – 2018. – S. 48. (In Russian).

5. Skakov M.K. Modelirovanie formirovaniya parogazovoi obolochki v protsessakh katodnogo nagreva konstruktsionnykh stalei / M.K. Skakov, L.G. Zhurerova, L.A. Erygina // VostochnoKazakhstanskogo gosudarstvennogo tekhnicheskogo universiteta im. D. Serikbaeva. – 2013. (In Russian).

6. Strukturnoe prevrashchenie v stali 20GL posle ehlektrolitno-plazmennoi poverkhnostnoi zakalki / B.K. Rakhadilov i dr. // Vestnik NYATS RK. – 2018. – № 3. – S. 99-102. (In Russian).

7. Morozov V.P. Vliyanie kolebatel'nogo mekhanizma kristallizatsii na protsess izmel'cheniya pervichnoi struktury metalla shva i zony termicheskogo vliyaniya / V.P. Morozov // Mashinostroenie i komp'yuternye tekhnologii. – 2010. – № 09. – S. 1. (In Russian).

8. Chudina O.V. Konstruktsionnye materialy dlya transportnykh sredstv spetsial'nogo naznacheniya: uch. posobie / O.V. Chudina, M.P. Malinovskii. – M.: MADI, 2020. – 232 s. (In Russian).

9. Pat. RU 2002119410, MPK E04B 2/56. Konstruktsionnye paneli obshivki / Ton'yan T.D. i dr.; zayavitel' i patentoobladatel' Yunaited Steits Dzhipsum Kompani (US); zayavl. 2001.11.16; opubl. 2004.02.20. (In Russian).

10. Kairatuly SH. Vliyanie termicheskoi obrabotki na strukturu i svoistva otlivok iz stali 20GML: magisterskaya dissertatsiya / SH. Kairatuly; TPU, ISHNPT, Otdelenie materialovedeniya (OM); nauch. ruk. I.L. Strelkova. – Tomsk, 2022. (In Russian). (In Russian).

11. Pogrebnyak A.D. Ehlektrolitno-plazmennaya tekhnologiya dlya naneseniya pokrytii i obrabotki metallov i splavov / A.D. Pogrebnyak, A.SH. Kaverina, M.K. Kylyshkanov // Fizikokhimiya poverkhnosti i zashchita materialov. – 2014. – T. 50, № 1. – S. 72-88. (In Russian).

12. Musikhin S.A. Vliyanie khimicheskoi neodnorodnosti sredneuglerodistykh nizkolegirovannykh stalei na formirovanie struktury i kompleksa svoistv pri termicheskom vozdeistvii: dis. ... kand. tekh. n.: 05.16.01. – Ekaterinburg, 2015. – 24 s. (In Russian).