Crack initiation and growth in full scale railway axle in A1T mild steel have been studied, under three points rotating bending loading conditions and artificial rainwater as corrosive environment. A surface plastic replication technique has been used along with optical microscopy and Scanning Electron Microscopy to monitor the environment assisted fatigue at various stages. A modified Murtaza and Akid empirical model has been employed to predict the corrosion fatigue crack growth rates and a reasonable agreement has been found between experimental and calculated lifetime.
Crack growth studies in railway axles under corrosion fatigue: Full-scale experiments and model validationtr / S. Beretta, M. Carboni, A. Lo Conte, D. Regazzi, S.P.M. Trasatti, M. Rizzi. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - 10(2011), pp. 3650-3655. ((Intervento presentato al 11. convegno International Conference on the Mechanical Behavior of Materials tenutosi a Como nel 2011.
Crack growth studies in railway axles under corrosion fatigue: Full-scale experiments and model validationtr
S.P.M. Trasatti;M. Rizzi
2011
Abstract
Crack initiation and growth in full scale railway axle in A1T mild steel have been studied, under three points rotating bending loading conditions and artificial rainwater as corrosive environment. A surface plastic replication technique has been used along with optical microscopy and Scanning Electron Microscopy to monitor the environment assisted fatigue at various stages. A modified Murtaza and Akid empirical model has been employed to predict the corrosion fatigue crack growth rates and a reasonable agreement has been found between experimental and calculated lifetime.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
