Microstructure evolution of rail steels under different dry sliding conditions: A comparison between pearlitic and bainitic microstructures

Railway transportation has constantly been moving towards high-speed and heavy-haul direction, and at the same time, the requirements of wheel-rail steels' properties have been increased. Especially, at curved tracks and railway forks, the transformation of wheel-rail wear mode from rolling/sliding wear into sliding wear, accelerating rail failure. Therefore, it is of great importance to conduct a comparison study on the changes of...