Railway systems have to cope with increasing and heavier traffic conditions. New rail steel grades are designed to extend rail life and to prevent rail defects. The tribologicai response of such steel grades under wheel-rail contact conditions needs to be studied before its use on real track. Tests on reducedscale simulator, i.e. roller-on-plate tribometer with wheel-rail contact like conditions, have been performed on three rail steel grades: the Pearlitic, the heat-treated Pearlitic and the Bainitic. Results show a difference in both sensitivity and mechanism of particle detachment with the steel grade microstructure, but no difference in friction coefficient evolution.
Tribologicai behaviour of Pearlitic and Bainitic steel grades under various sliding conditions
Tribologisches Verhalten von perlitischen und bainitischen Stahlsorten bei verschiedenen Gleitbedingungen
2012
11 Seiten, 11 Bilder, 3 Tabellen, 26 Quellen
Aufsatz (Konferenz)
Englisch
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