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Effect of Chemical Composition, Microstructure and Mechanical Properties on the Wear Resistance of Rail Steel

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Abstract

Rail steel samples have been tested for abrasive wear and sliding wear. It is shown that the wear resistance of rail steel is mainly determined by the carbon content therein and by the dispersity and structural homogeneity thereof: with increasing carbon content in the rail steel, the wear resistance exhibits an increase due to a decrease in the interlamellar distance of pearlite, as well as to a decrease in the amount of excess ferrite. Also, increasing chromium amount in steel promotes an increase in wear resistance. It has been found that the wear resistance of rail steel depends on the combination of hardness and plastic properties thereof. A high wear resistance level is predicted for rails made of hypereutectoid steel with a carbon content amounting to about 0.90% and a chromium content of about 0.30%

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ACKNOWLEDGMENTS

The sliding friction wear testing was carried out at Institute of Metal Physics of the Ural Branch of the RAS by Candidate Sci. (Engineering) V.A. Sirosh. The testing for abrasive wear resistance was performed at the Ural Federal University by Doctor Sci (Engineering), Professor M.A. Filippov. The authors express gratitude for their assistance in the studies.

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Authors and Affiliations

  1. JSC Ural Institute of Metals, Ekaterinburg, Russia

    A. B. Dobuzhskaya & G. A. Galitsyn

  2. JSC EVRAZ Holding, Moscow, Russia

    G. N. Yunin

  3. JSC EVRAZ ZSMK, Novokuznetsk, Russia

    E. V. Polevoi & A. M. Yunusov

Authors
  1. A. B. Dobuzhskaya
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  2. G. A. Galitsyn
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  3. G. N. Yunin
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  4. E. V. Polevoi
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  5. A. M. Yunusov
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Corresponding author

Correspondence to A. B. Dobuzhskaya.

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Translated by O. Polyakov

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Dobuzhskaya, A.B., Galitsyn, G.A., Yunin, G.N. et al. Effect of Chemical Composition, Microstructure and Mechanical Properties on the Wear Resistance of Rail Steel. Steel Transl. 50, 906–910 (2020). https://doi.org/10.3103/S0967091220120037

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  • DOI: https://doi.org/10.3103/S0967091220120037

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