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This article is cited in 7 scientific papers (total in 7 papers)
Metals
Rail steel fracture analysis under conditions of railroad switch
S. A. Atroshenkoa, S. S. Maierb, V. I. Smirnovb a Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg
b Emperor Alexander I St. Petersburg State Transport University
Abstract:
The correlation between the mechanical properties of a material in microvolumes and the material under a load has been studied. A fractographic analysis is performed for the surface of fatigue failure of a railway rail with an internal cross crack. The correlation of the fractographic features with the material structure is discussed. A sample with an internal cross crack in the rail head had been withdrawn from service after severe cyclic loading in a turnout switch. For the metallographic study, the sample was subjected to a three-point bending. Three regions with different characters of the material fracture have been revealed at the surface of the fracture.
Keywords:
rail, cross crack, fracture, fatigue failure.
Received: 21.04.2020 Revised: 21.04.2020 Accepted: 29.05.2020
Citation:
S. A. Atroshenko, S. S. Maier, V. I. Smirnov, “Rail steel fracture analysis under conditions of railroad switch”, Fizika Tverdogo Tela, 62:10 (2020), 1573–1577; Phys. Solid State, 62:10 (2020), 1741–1745
Linking options:
https://www.mathnet.ru/eng/ftt8274 https://www.mathnet.ru/eng/ftt/v62/i10/p1573
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