Influence of the In-Service Factors on the Serviceability of Graphitized Steel

We compare the regularities of the influence of high (up to 800°С) and low (down to – 40°C) temperatures and corrosive media on the mechanical characteristics of graphitized steel and known 2 and T wheel steels. It is shown that the decrease in the temperature of austenitization and rapid growth of...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2015-11, Vol.51 (3), p.381-387
Main Authors: Kulyk, V. V., Andreiko, I. M., Vavrukh, V. I.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crack propagation
Embrittlement
Graphitization
Materials Science
Mechanical properties
Media
Plasticity
Railroad wheels
Solid Mechanics
Steel
Steels
Structural Materials
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Summary:We compare the regularities of the influence of high (up to 800°С) and low (down to – 40°C) temperatures and corrosive media on the mechanical characteristics of graphitized steel and known 2 and T wheel steels. It is shown that the decrease in the temperature of austenitization and rapid growth of the high-temperature plasticity of steels create more favorable conditions for the formation of slider-type defects on the rolling surfaces of railroad wheels. It is also established that, at low temperatures (down to – 40°C), the graphitized steel is not susceptible to low-temperature embrittlement and the corrosive media do not affect its cyclic crack resistance.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-015-9852-6