engleski

Treatment regarding the maintenance of railway rails

In modern railway exploitation, rails are exposed to a constant increase of speed and loading on the vehicle axles and to constant stress increase in welded railway tracks. To meet the increased exploitation requirements, new requirements regarding rail steel quality have been set out in standards for manufacture and delivery of railway rails. By each railway track maintenance always involve the removal of a number of rails because of cracking or damage resulting from manufacturing defects and/or traffic loads. The monitoring of the behaviour of rails in the track must be connected with computer processing with the aim that users and producers could focus their efforts in improving the quality of the rails and the conditions of their use. This paper elaborate an overlook of the treatment regarding to rail defects caused by rolling contact fatigue (RCF) which is an increasingly common phenomenon in last decade on railways.

rails defects RCF; treatment; crack growth; defect categories

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