Stray current corrosion activity on rail transit system in urban areas (CROSBI ID 663980)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Vranešić, Katarina ; Lakušić, Stjepan ; Serdar, Marijana
engleski
Stray current corrosion activity on rail transit system in urban areas
Corrosion reaction is a consequence of metal’s natural reaction with the environment which can’t be stopped by itself. Reactions like this are causing huge construction maintenance costs. The most common type of corrosion is electrochemical corrosion, which includes stray current corrosion – it is electrochemical corrosion that occurs mostly on railway structures in urban areas. DC (direct current) transit system operators are using rails as current returning path from the vehicle to the substation. When proper drainage of the track isn’t assured, surrounding media in which rails are embedded becomes an electrolyte which leads to stray current leakage and development of corrosion. At the part where stray current is entering to the rail, rail in under cathodic protection. This is cathodic zone of rail. Corrosion occurs on parts where current is leaking from the rail, in anodic zone where deterioration of material under stray current corrosion effect can be notice. Different type of measures for reducing stray current leakage at the source are used among operators. At that way anodic reaction of metal (rails) with the electrolyte (media in which rails are embedded) can be stopped.
electrochemical corrosion, stray current, anode, cathode, tram track
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Podaci o prilogu
309-315.
2018.
objavljeno
10.5592/CO/NOPQR.2018.936
Podaci o matičnoj publikaciji
Road and Rail Infrastructure V, Proceedings of the Conference CETRA 2018
Lakušić, Stjepan
Zagreb: University of Zagreb, Faculty of Civil Engineering, Department of Transportation Engineering
978-953-8168-25-3
1848-9850
Podaci o skupu
5th International Conference on Road and Rail Infrastructure (CETRA 2018)
predavanje
17.05.2018-19.05.2018
Zadar, Hrvatska