Wear and Shelling Behavior in Pearlitic and Bainitic Rail Steels with Various Tensile Strengths

Resistance to wear and surface damaging (shelling) in pearlitic and bainitic steel rails with various tensile strengths ranging from 850 to 1400 MPa were examined by wear and rotating contact fatigue tests. The pearlitic steels showed better wear resistance than the bainitic steels for all the test conditions tested, although the amount of wear varied according to the strength range and contact pressure used in the wear tests. The wear behavior...