IMPROVEMENT OF RAILS FATIGUE LIFE BY ELECTRON-BEAM PROCESSING
Vladimir А. Grishunin, 
Oleg A. Peregudov,
Vasilii E. Kormyshev,
Anton A. Yuriev,
Yurii F. Ivanov,
Viktor E. Gromov,
Elena V. Martusevich
Oleg A. Peregudov,
Vasilii E. Kormyshev,
Anton A. Yuriev,
Yurii F. Ivanov,
Viktor E. Gromov,
Elena V. Martusevich Abstract
Quantitative and qualitative studies of the structure, phase composition, defective substructure, fracture surface of rail steel subjected to high-cycle fatigue to fracture with the initial pearlite structure and after electron beam treatment (EBT) in various modes were carried out. Layer-by-layer electron microscopic studies revealed the gradient nature of the structural-phase states, which is characterized by a regular change in the phase composition and parameters of the defective substructure with distance from the irradiation surface. The main factors and mechanisms that determine the fatigue life of rail steel in the initial state and after EPO were identified and analyzed. It was established that an increase in the fatigue life of steel irradiated with an electron beam is due to the formation of an acicular profile of the interface, which leads to dispersion of stress concentrators and contributes to a more uniform plastic flow in the substrate.
About the Authors
Vladimir А. Grishunin
Siberian State Industrial University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Associate Professor of the Department of Transport and Logistics, Vice-Rector for Property Complex Management
Oleg A. Peregudov
Omsk State Technical University
Cand. Sci. (Eng.), Assistant Rector for Youth Policy
Vasilii E. Kormyshev
Siberian State Industrial Univers
Sci. (Eng.), Senior Researcher of the Department of Scientific Researches
Anton A. Yuriev
JSC «EVRAZ – Joint West Siberian Metallurgical Plant»
Sci. (Eng.), Product and resource manager
Yurii F. Ivanov
Институт сильноточной электроники СО РАН
Dr. Sci. (Phys.-Math.), Prof., Chief researcher, Institute of High Current Electronics SB RAS
Viktor E. Gromov
Siberian State Industrial University
Dr. Sci. (Phys.-Math.), Prof., Head of the Chair of Science named after V.M. Finkel'
Elena V. Martusevich
Siberian State Industrial University
Cand. Sci. (Eng.), Assist. Prof. of the Chair of Natural Sciences named after prof. V.M. Finkel
References
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Review
For citations:
Grishunin V., Peregudov O., Kormyshev V., Yuriev A., Ivanov Yu., Gromov V., Martusevich E. IMPROVEMENT OF RAILS FATIGUE LIFE BY ELECTRON-BEAM PROCESSING. Bulletin of the Siberian State Industrial University. 2022;(1):56-62. (In Russ.)
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