Low-temperature cyclic crack resistance of steels of railroad wheels

We have established that the steels of high-and medium-strength railroad wheels in the presence of fatigue-crack-type defects are susceptible to low-temperature (up to −60°C) embrittlement only for high amplitudes of cyclic loading, when the growth rate of a fatigue crack exceeds 10 −7 m/cycle. Here...

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Veröffentlicht in:	Materials science (New York, N.Y.) N.Y.), 2008-07, Vol.44 (4), p.524-529
Hauptverfasser:	Ostash, O. P., Andreiko, I. M., Kulyk, V. V., Uzlov, I. H., Uzlov, K. I., Babachenko, O. I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Characterization and Evaluation of Materials Chemistry and Materials Science Crack propagation Crack sensitivity Cracks Cyclic loads Ductile fracture Ductile-brittle transition Embrittlement Fatigue cracks Fatigue failure Flaw detection Hoop stress Inspection Low temperature Low temperature resistance Materials fatigue Materials Science Metal fatigue Railroad wheels Solid Mechanics Steel Structural Materials Structural steels Surface cracks Temperature Wheels
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