Rail Strengthening Nature in the Course of Long-Term Operation
- Авторы: Gromov V.1, Peregudov O.1, Glezer A.2, Morozov K.1, Ivanov Y.3,4, Yur’ev A.5
-
Учреждения:
- Siberian State Industrial University
- Bardin Central Scientific Research Institute of Ferrous Metallurgy
- Institute of High Current Electronics, Siberian Branch
- National Research Tomsk Polytechnic University
- Evraz—United West Siberian Metallurgical Combine LLC
- Выпуск: Том 9, № 1 (2018)
- Страницы: 26-31
- Раздел: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/207055
- DOI: https://doi.org/10.1134/S2075113318010148
- ID: 207055
Цитировать
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.
Ключевые слова
Об авторах
V. Gromov
Siberian State Industrial University
Автор, ответственный за переписку.
Email: gromov@physics.sibsiu.ru
Россия, Novokuznetsk
O. Peregudov
Siberian State Industrial University
Email: gromov@physics.sibsiu.ru
Россия, Novokuznetsk
A. Glezer
Bardin Central Scientific Research Institute of Ferrous Metallurgy
Email: gromov@physics.sibsiu.ru
Россия, Moscow
K. Morozov
Siberian State Industrial University
Email: gromov@physics.sibsiu.ru
Россия, Novokuznetsk
Yu. Ivanov
Institute of High Current Electronics, Siberian Branch; National Research Tomsk Polytechnic University
Email: gromov@physics.sibsiu.ru
Россия, Tomsk; Tomsk
A. Yur’ev
Evraz—United West Siberian Metallurgical Combine LLC
Email: gromov@physics.sibsiu.ru
Россия, Novokuznetsk