Rail Strengthening Nature in the Course of Long-Term Operation

V. E. Gromov, O. A. Peregudov, A. M. Glezer, K. V. Morozov, Yu F. Ivanov, A. B. Yur’ev

Результат исследований: Материалы для журналаСтатья

1 Цитирования (Scopus)

Аннотация

Using the methods of transmission electron diffraction microscopy and measurement of microhardness, the regularities of the change in the structural-phase states and defective substructure of the surface layers of rails up to 10 mm by fillet after long-term operation (the passed tonnage of 1000 million tons gross) are established. The possible causes of the observed regularities are discussed. A quantitative analysis of the mechanisms of strengthening of rails at different distance from the rolling surface by fillet after long-term operation is carried out. It is shown that strengthening is multifactorial in nature and is due to substructural strengthening caused by the formation of nanoscale fragments; dispersion strengthening by carbide phase particles; strengthening caused by the formation of Cottrell and Suzuki atmospheres on dislocations; internal stress fields, formed inside; and interphase boundaries.

Язык оригиналаАнглийский
Страницы (с-по)26-31
Число страниц6
ЖурналInorganic Materials: Applied Research
Том9
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2018

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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  • Цитировать

    Gromov, V. E., Peregudov, O. A., Glezer, A. M., Morozov, K. V., Ivanov, Y. F., & Yur’ev, A. B. (2018). Rail Strengthening Nature in the Course of Long-Term Operation. Inorganic Materials: Applied Research, 9(1), 26-31. https://doi.org/10.1134/S2075113318010148