Wechselwirkungen im System Rad-Schiene: Zusammenhang zwischen Schienengüte und Schädigungsmechanismen (Verschleiß) am Rad

This master thesis deals with the investigation of the correlation between the wheel wear of a rail vehicle and the steel grade of the rail. Specifically, the research question is: What is the relationship between rail grade and the hardness of the rail tread and various damage mechanisms (especially wear) on the wheel?
To answer this question, various investigations described in the literature were compared and analysed in terms of boundary conditions and results. These investigations include several two-disk tests, wheel-rail test rig tests and one track test. In addition to the tests, theoretical considerations on wear in the wheel-rail system were also examined in more detail.
Combined, the evaluation and comparison of the test results showed that the wear behaviour of the wheels depends on the load level - the axle load: at common axle loads (mixed traffic), wheel wear decreases with an increase in rail hardness; at high axle loads (heavy haul applications), it shows more or less constant behaviour.
In order to be able to accurately understand these relationships, further tests are necessary that focus on the influences of various parameters not yet precisely known.