Properties of Railway Wheels Made of Metal with Increased Copper Content
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Date
2024
Journal Title
Journal ISSN
Volume Title
Publisher
Printing House “Technologija”, Kaunas, Lithuania
Abstract
ENG: The content of non-ferrous metals and, in particular, copper is limited by numerous standards regulating the chemical composition of steels. Thus, for instance, according to the Ukrainian standard for wheel steel, the residual content of nickel, chromium, and copper should not exceed 0.25% each. According to the international UIC standard, this content should not exceed 0.30% each. The residual copper content according to the Japanese standard is allowed to be not more than 0.35%. Many steelmakers are concerned about the presence of copper due to its red shortness. However, the beneficial effect of Cu on hardenability and transformation kinetics is well-known, enabling the formation of a structure with a high density of dislocations at cooling rates feasible in industrial conditions, thus imparting high initial strength to the matrix. Experimental smelting was conducted in the open-hearth furnaces to obtain 0.15-0.60% of copper in the metal. It was found out that the resistance of slag truck wheels made of metal with increased copper content against the formation of ridge notches, which are the main reason for repairs of these wheels during operation, is significantly higher than that of serial ones.
Description
Yu. Proidak: ORCID 0000-0001-7380-055X; K. Chornoivanenko: ORCID 0000-0003-1613-7784
Keywords
wheel steel, copper, red shortness, strength, dislocation density, wheel resistance, ridge notch, КЕМ ім. Гасика (ІПБТ), КСЯСМ (ІПБТ), Ректорат УДУНТ
Citation
Proidak Yu., Chornoivanenko K., Pikil O. Properties of Railway Wheels Made of Metal with Increased Copper Content. Transport Means 2024 : Proc. of the 28th Intern. Sci. Conf. (Oct. 02–04, 2024, Kaunas, Lithuania). Kaunas University of Technology [et al.]. Kaunas, 2024. Р. 389–392. DOI: 10.5755/e01.2351-7034.2024.P389-392.