{"id":2368,"date":"2022-04-13T13:39:24","date_gmt":"2022-04-13T11:39:24","guid":{"rendered":"https:\/\/jrn.isi.gov.ua\/?page_id=2368"},"modified":"2023-08-12T23:13:45","modified_gmt":"2023-08-12T20:13:45","slug":"2368-2","status":"publish","type":"page","link":"https:\/\/jrn.isi.gov.ua\/?page_id=2368&lang=en","title":{"rendered":"DOI: 10.52150\/2522-9117-2021-35-212-222"},"content":{"rendered":"

Babachenko Oleksandr Ivanovych, <\/strong>Dr. Sci. (Engin.), Senior Research Scientist, Director, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. ORCID: 0000-0003-4710-0343. E-mail: office.isi@nas.gov.ua<\/p>\n

Kononenko Ganna Andriivna<\/strong>, Dr. Sci. (Engin.), Senior Researcher, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. ORCID 0000-0001-7446-4105<\/p>\n

Merkulov Oleksii Yevhenovych<\/strong>, Dr. Sci. (Engin.), Senior Researcher, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. ORCID 0000-0002-7867-0659<\/p>\n

Podolskyi Rostyslav Viacheslavovych<\/strong>, PhD (Engin.), Junior Researcher, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. \u00a0ORCID 0000-0002-0288-0641<\/p>\n

Klemeshov Evhen Serhiiovych<\/strong>, PhD (Engin.), Researcher, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. \u00a0ORCID 0000-0001-7446-410X<\/p>\n

Safronova Olena Anatoliivna<\/strong>, Junior Researcher, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. ORCID 0000-0002-4032-4275<\/p>\n

MODELING OF PHASE-STRUCTURAL TRANSFORMATIONS IN STEEL FOR NEW GENERATION RAILWAY TRACKS<\/strong><\/h3>\n

Summary.<\/strong> The process of operation of vehicles is determined by the interaction of the wheel and rail. The result is the effect arising from the friction of rolling and especially from the friction of the wheel sliding on the rail during braking, in relation to these changes there is a significant increase in the intensity of wear of the wheels of rolling stock. Based on research in recent years, it is known that the strength of pearlitic rail steels has reached its limit. Based on the literature analysis, steels used in world practice for the production of railway rails from bainite were identified and compared with the chemical compositions of steels used in various fields in Ukraine. In order to determine the influence of basic chemical elements through known isothermal (TTT) diagrams and the actual chemical composition on the formation of the structure with the subsequent construction of thermokinetic (\u0421\u0421\u0422) diagrams. A promising approach is to increase resistance through the manufacture of railway rails with bainitic structure. The regularities of the decay kinetics of austenite grade 30HGS with 0.28% C, 1.49% Si, 0.92% Mn, 0.99% Cr were studied by the method of mathematical modeling. The intervals of cooling rates, within which the change of the mechanism of structure formation at austenite decay is observed, are determined. It is shown that at the cooling rate up to ~ 3\u00b0\u0421\/s the decay of austenite occurs with the formation of pre-eutectoid ferrite and perlite; at 3\u00b0C\/s… 10\u00b0C\/s the steel structure consists of pre-eutectoid ferrite, perlite and bainite; at 10\u00b0C\/s … 20\u00b0C\/s – from pre-eutectoid ferrite, perlite, bainite and martensite; at 20\u00b0C\/s … 30\u00b0C\/s – from bainite and martensite; at a cooling rate of 50\u00b0C\/s the decay of austenite occurs with the formation of martensite. The critical cooling rate for the investigated steel is in the range of 30\u2026 50\u00ba\u0421\/s. The chemical composition of experimental steels for railway rails was developed and ingots smelting up to 10 kg were smelted in the laboratory.<\/p>\n

Key words: <\/strong>railway rail, rail steel, bainite, modeling, 30HGS.<\/p>\n

For citation:<\/strong> Babachenko<\/em> O.I., Kononenko G.A., Merkulov O.Ye., Podolsky R.V., Klemeshov E.S., Safronova O.A. <\/em>Modelyuvannya fazovo-strukturnykh peretvoren u stali dlya zaliznychnykh reyok novoho pokolinnya [Modeling of phase-structural transformations in steel for new generation railway tracks]. Fundamental’nye i prikladnye problemy \u010dernoj metallurgii [Fundamental and applied problems of ferrous metallurgy<\/em>], <\/em>2021, 35,<\/em> 212-222. (In Ukrainian).<\/p>\n

DOI: 10.52150\/2522-9117-2021-35-212-222<\/p>\n

Reference<\/strong>s<\/strong><\/p>\n

    \n
  1. Shur A. (2003). K voprosu ob optimal’nom sootnoshenii tverdosti rel’sov i koles [On the question of the optimal ratio of the hardness of rails and wheels]. Sovremennye problemy vzaimodejstvija podvizhnogo sostava i puti: Materialy nauchno-prakticheskoj konferencii<\/em> [Proceedings of scientific-practical conference Modern problems of interaction between rolling stock and tracks].<\/em> VNIIZhT. Moskva 2003. p.p. 87-93 [In Russian].<\/li>\n
  2. Harder (1999). Creep Force \u2013 Creepage and Frictional Work Behaviour in Non-Hertzian Counter formal Rail\/Wheel Contacts. Proceedings of IHHA’99 STS-Conference on Wheel\/Rail Interface<\/em>. Moscow. 1999. Vol. 1. p.p. 207-214.<\/li>\n
  3. Vorob’ev A. (2009). Issledovanie naprjazhennogo sostojanija pjatna kontakta kolesa i rel’sa [Investigation of the stress state of the wheel-rail contact spot]. Vestnik IrGTU<\/em> [ISTU Bulletin],<\/em> 2009<\/em>, 42\u201347.<\/li>\n
  4. Paul , Hashemi J. (1977). User’s Manual for Program CONTACT<\/em>. Technical Report No. 4. FRA\/ORD-78\/27\/PB286097. NTIS. Springfield. VA. Sept. 1977.<\/li>\n
  5. Bol’shakov I., Dolzhenkov I.E., Zajcev A.V. Oborudovanie termicheskih cehov. tehnologii termicheskoj i kombinirovannoj obrabotki metalloprodukcii [Equipment for thermal shops. technologies of thermal and combined processing of metal products]<\/em>. 2nd ed. Dnepropetrovsk. RIA Dnepr-VAL. 2010. 619 p. [In Russian].<\/li>\n
  6. Medovar B., Cykulenko K.A., Cykulenko A.K. (1998). Bejnitnye stali dlja rel’sov [Bainitic steel for rails]. Problemy special’noj jelektrometallurgii<\/em> [Problems of special electrometallurgy],<\/em> 1998<\/em>, 10-20. [In Russian].<\/li>\n
  7. Devis (1998). Sawley. Railway Track Structures<\/em>,<\/em> 1998<\/em>,<\/em> 11<\/em>, <\/em>14-17<\/li>\n
  8. Rel’sovaja stal’ dlja zheleznyh dorog Severnoj Ameriki (1999). [Rail steel for North American railways]. ZhDM, 1999, 11<\/em>. [In Russian].<\/li>\n
  9. Babachenko \u0406., Kononenko G.A., Roslik O.V., Majstrenko K.M., Podol’s’kij R.V. (2021). Rozrobka stalej dlja metaloprodukc\u0456\u0457 zal\u0456znichnogo priznachennja [Development of steels for railway metal products]. Dn\u0456pro. “Dom\u0456nanta-print”. 2021. 298. [In Ukrainian].<\/li>\n
  10. Babachenko \u041e.\u0406., Kononenko \u0413., Podolskyi R.V. (2021). Development of a model for calculating changes in K76F rail steel temperature to determine the heat treatment parameters. Science and Innovation,<\/em> 2021<\/em>, <\/em>17<\/em> (4),<\/em> 25-32. https:\/\/doi.org\/10.15407\/scine17.04.025<\/li>\n
  11. Podol’s’kij V., Dejneko L.M. (2020). Viznachennja podal’shih naprjam\u0456v p\u0456dvishhennja ekspluatac\u0456jno\u0457 nad\u0456jnost\u0456 zal\u0456znichnih rejok novogo pokol\u0456nnja [Determination of further ways to improve the operational reliability of the new generation of railway tracks]. Vseukra\u0457ns’ka naukovo-tehn\u0456chna konferenc\u0456ja “Molodaja akademija 2020”<\/em> [All-Ukrainian scientific and technical conference “Young Academy 2020”],<\/em> 2020<\/em>,<\/em> 1<\/em>,<\/em> p. 59. [In Ukrainian].<\/li>\n
  12. Podol’s’kij V., Safronova O.A., Babachenko O.\u0406., Kononenko A.A. (2020). Dosl\u0456dzhennja vplivu term\u0456chno\u0457 obrobki na formuvannja m\u0456krostrukturi ta tverdost\u0456 dosl\u0456dnih rejkovih stalej [Research of influence of heat treatment on formation of microstructure and hardness of experimental rail steels]. 11 Vseukra\u0457ns’ka konferenc\u0456ja molodih vchenih “Molod\u0456 vchen\u0456-2020”<\/em> [<\/em>11<\/em> All-Ukrainian Conference “Young Scientists 2020”], <\/em>2020<\/em>, <\/em>1<\/em>,<\/em> p.p. 53-56. [In Ukrainian].<\/li>\n
  13. Babachenko \u0406., Kononenko G.A., Podol’s’kij R.V. (2020). \u0406m\u0456tac\u0456jne modeljuvannja zm\u0456ni teplovogo polja zal\u0456znichno\u0457 rejki p\u0456d chas diferenc\u0456jno\u0457 term\u0456chno\u0457 obrobki [Simulation modeling of changes in the thermal field of the railway rail during differential heat treatment]. VI M\u0456zhnarodna naukovo tehn\u0456chna konferenc\u0456ja <\/em>“komp’juterne modeljuvannja ta optim\u0456zac\u0456ja skladnih sistem<\/em>“ [VI International Scientific and Technical Conference “Computer Modeling and Optimization of Complex Systems”]<\/em>,<\/em> 2020<\/em>, <\/em>6<\/em>, <\/em>p.p. 17-18. [In Ukrainian].<\/li>\n
  14. Babachenko \u0406., Kononenko G.A., Podol’skij R.V., Safronova O.A. (2020). Dosl\u0456dzhennja vplivu rezhim\u0456v term\u0456chno\u0457 obrobki dosl\u0456dnih stalej dlja zal\u0456znichnih rejok novogo pokol\u0456nnja na mehan\u0456chn\u0456 vlastivost\u0456 [Research of influence of modes of heat treatment of experimental steels for railway rails of new generation on mechanical properties]. Fundamental’n\u0456 \u0456 prikladn\u0456 problemi chorno\u0457 metalurg\u0456\u0457 [Fundamental and applied problems of ferrous metallurgy]<\/em>, <\/em>2020<\/em>, <\/em>34<\/em>,<\/em> 247-255 [In Ukrainian]. https:\/\/doi.org\/10.52150\/2522-9117-2020-34-247-255<\/li>\n
  15. Babachenko \u041e.\u0406., \u041a\u043enonenko \u0410., Podolskyi R.V. et al. (2021). Steel for Railroad Rails with Improved Operating Properties. Materials Science<\/em>, <\/em>2021<\/em>, 56, <\/em>814\u2013819 https:\/\/doi.org\/10.1007\/s11003-021-00499-1<\/li>\n
  16. Sharma , Sangal S., Mondal K. (2016). Wear behaviour of bainitic rail and wheel steels. Materials Science and Technology<\/em>,<\/em> 2016<\/em>, <\/em>32<\/em> (4)<\/em>,<\/em> 266\u2013274. https:\/\/doi.org\/10.1080\/02670836.2015.1112537<\/li>\n
  17. Pointner (2008). High strength rail steels – The importance of material properties in contact mechanics problems. Wear, 2008<\/em>, <\/em>265<\/em>, 1373-1379. https:\/\/doi.org\/10.1016\/j.wear.2008.03.015<\/li>\n
  18. Popova E., Popov A.A. (1991). Diagrammy prevrashhenija austenita v staljah i beta-rastvorah v splavah titana: Spravochnik termista<\/em> [Diagrams of austenite transformation in steels and beta-solutions in titanium alloys: Thermist’s Handbook]<\/em>. (3th ed.). Moskva: Metalurgija. 1991. 503 p. [In Russian].<\/li>\n
  19. Popov A., Popova L.E. (1961). Izotermicheskie i termokineticheskie diagrammy raspada pereohlazhdennogo autenita: Spravochnik termista<\/em> [Isothermal and thermokinetic diagrams of the decay of supercooled authenite. Thermist’s handbook]<\/em>. <\/em>Moskva-Sverdlovsk: Gosudarstvenno nauchno-tehnicheskoe izdatel’stvo mashinostroitel’noj literatury. 1961. 430 p. [In Russian].<\/li>\n
  20. Delbart , Constant A. (1956). Courbes de transformation des aciers de fabrication francaise<\/em>. Saint-Germain en Laye. 1956. 140p.<\/li>\n
  21. Vinarov M. (1945). Aviacionnye stali<\/em> [Aviation steels]<\/em>.<\/em> G. N. Dubinin (Ed.). Oborongiz. 1945. [In Russian].<\/li>\n<\/ol>\n

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    Babachenko Oleksandr Ivanovych, Dr. Sci. (Engin.), Senior Research Scientist, Director, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107. ORCID: 0000-0003-4710-0343. E-mail: office.isi@nas.gov.ua Kononenko Ganna Andriivna, Dr. Sci. (Engin.), Senior Researcher, Iron and Steel Institute of Z.\u00a0I.\u00a0Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2368","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/2368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2368"}],"version-history":[{"count":2,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/2368\/revisions"}],"predecessor-version":[{"id":4039,"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=\/wp\/v2\/pages\/2368\/revisions\/4039"}],"wp:attachment":[{"href":"https:\/\/jrn.isi.gov.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}