COMPARATIVE ANALYSIS OF THE MICROSTRUCTURE AND PROPERTIES OF RAILS WITH DIFFERENT CHEMICAL COMPOSITION
https://doi.org/10.57070/2304-4497-2023-4(46)-46-56
Abstract
The increase in axial loads and the mass of rolling stock, typical for modern heavy haul traffic, as well as a significant increase in the speeds of passenger trains, increase the load on the railway track. At the same time, on the part of consumers of rail products, requirements are being put forward to increase the time of inter-repair work as well as the durability and reliability of rails as the main and most loaded element of the upper structure of the track. The operational stability of rails is largely determined by the structural and phase state of steel. It is important to establish the regularities of the formation of the microstructure of rails, which depends on the chemical composition of steel and the influence of the structure on the properties of finished products. As a result of the conducted studies, the links between the structure parameters, the physical and mechanical properties of rails, the content of the main chemical elements in steel, and the interplate distance of perlite have been established. The authors proposed to obtain a finely dispersed perlite structure that provides the highest operational properties
About the Authors
Ol'ga Bessonova
JSC «EVRAZ – Joint West Siberian Metallurgical Plant»
Russian Federation
Russian Federation
chief specialist-metallologist in electron microscopy and research
Egor Polevoi
JSC «EVRAZ – Joint West Siberian Metal-lurgical Plant»
Russian Federation
Russian Federation
Cand. Sci. (Eng.), head of the research department
Tat'yana Oskolkova
Siberian State Industrial University
Russian Federation
Russian Federation
Dr. Sci. (Eng.), professor of the department of ferrous metallurgy and chemical technol-ogy
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Review
For citations:
Bessonova O., Polevoi E., Oskolkova T. COMPARATIVE ANALYSIS OF THE MICROSTRUCTURE AND PROPERTIES OF RAILS WITH DIFFERENT CHEMICAL COMPOSITION. Bulletin of the Siberian State Industrial University. 2023;(4):46-56. (In Russ.) https://doi.org/10.57070/2304-4497-2023-4(46)-46-56
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