Non-metallic inclusions study and characteristics of KP-T wheel steel under the influence of modification
Keywords:
railway wheels, wear-resistant steels, multifunctional modifiers, mechanical propertiesAbstract
This article dials with railway wheels production for trains on carbon wear-resistant steels. With increasing global demands and fierce competition, there arises a need to explore alternative solutions for enhancing the quality of such wheels beyond traditional methods like alloying and heat treatment. This research focuses on the use of multifunctional modifiers to improve mechanical properties and reduce non-metallic inclusions in wheel steel KP-T. Experimental investigations, including chemical analysis, electron microscopy, and mechanical testing, were conducted. Results demonstrate that the application of multifunctional modifiers led to a reduction in non-metallic inclusions and an enhancement in mechanical properties. Stabilizing the chemical composition and mechanical characteristics is crucial for ensuring the quality and safety of railway wheels for high-stress applications. Similar investigations were conducted for steel KP-T. The action of multifunctional modifiers ensured a decrease in the quantity of non-metallic inclusions and an enhancement in the mechanical characteristics of steel KP-T. In the manufacturing of railway wheels for passenger cars, carbon wear-resistant steels are extensively employed. Growing demands for quality railway wheels made of such materials in the global market, coupled with stiff competition, necessitate the exploration of alternative solutions for enhancing their quality, besides the well-known methods of alloying and heat treatment. Therefore, the task of processing melts with multifunctional modifiers to increase mechanical properties and improve the morphology of non-metallic inclusions is currently highly relevant. The investigation utilized wheel steel KP-T produced in the main 250-ton furnace of the martensitic workshop of INTER-PIPE NTZ PJSC. This experimental-industrial steel was treated with multifunctional modifiers, the compositions of which are protected by patents of Ukraine. The modifiers were added to the KP-T steel melt using a vacuum steel.
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Polishko, S. (2019). Effect of processing at the steel vacuum processing unit (SVPU) on desulfurization of unmodified and modi-fied KP-2 steel. Technology audit and production reserves, 1(3(45)), 4–8. https://doi.org/10.15587/2312-8372.2019.157676
Polishko, S. O. (2019). Influence of multifunctional modifica-tion on stabilization of chemical composition of wheel steels. Jour-nal of Chemistry and Technologies, 27(1), 31–39. https://doi.org/10.15421/081903
Polishko, S. (2021). Complex effect of sulfur and phosphorus on the characteristics of wheel steel of KP-T brand before and after modification. Technology audit and production reserves, 2(1(58)), 11–14. https://doi.org/10.15587/2706-5448.2021.229163
Polishko, S. O. (2023). The Complex Influence of Chemical Modifier Elements on Improving the Quality of Wheel Steel by Out-of-Furnace Processing of Their Melts. Metallofizika i noveishie tekhnologii, 45(1), 127–135. https://doi.org/10.15407/mfint.45.01.0127
Полішко, С. О. (2011). Розкислювач-модифікатор для обро-бки розплавів сталей і сплавів: пат України (Патент України № 93684). Дніпропетровський національний університет імені Оле-ся Гончара.
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Copyright (c) 2024 Сергій Полішко, Тетяна Носова, Стелла Мамчур (Автор)
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