R260 Ray?n?n Mantar, Gövde ve Taban K?s?mlar?n?n Tribolojik Özelliklerinin Ara?t?r?lmas?

It is important to know tribological properties of rail and wheel for predicting the service life both components. In railway, system open harsh working condition can be seen as contact stress between extremely high. The behaviour varies depending on chosen rail-wheel materials also third body (water, humidity, lubricant, debris combination these elements). coefficient friction wear resistance are strongly dominated by material its properties. Up now, a number researchers focused only head material. Recent experimental study has devoted investigate head, web foot sections R260 rail, mechanical changes from rail. Different have been evaluated in terms microstructural, hardness, According obtained results ball-on-disc tests, highest belongs expected. coefficients web, found 0.39, 0.35 0.38, respectively.