Methods of transmission electron microscopy are used for layer-by-layer analysis of rails of the highest quality grade. Quantitative parameters of structure gradients, phase composition, and dislocation substructures formed by various mechanisms of γ–α transformation are determined. Sources of long-range stress fields are revealed. It is determined that possible places of microcrack origin in the steel are interfaces cementite particles – matrix.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 110–115, February, 2014.
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Gromov, V.E., Volkov, K.V., Ivanov, Y.F. et al. Structure, Phase Composition, and Defective Substructure of Rails of the Highest Quality Grade. Russ Phys J 57, 259–265 (2014). https://doi.org/10.1007/s11182-014-0233-7
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DOI: https://doi.org/10.1007/s11182-014-0233-7