Microstructure and Cyclic Deformation Behavior of Wheel and Tire Steels in Technically Relevant Heat Treatments

The present developments of rail-mounted traffic aim at higher speeds in the passenger and higher axle load in the freight traffic. As a consequence, a substantial increase of the loading of the wheels has to be regarded. Geometric changes at wheels and rails cause high cyclic loading in the dynamic...

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Bibliographic Details
Published inInternational journal of materials research Vol. 92; no. 8; pp. 882 - 887
Main Authors Walther, Frank, Eifler, Dietmar
Format Journal Article
LanguageEnglish
Published De Gruyter 15.02.2022
Subjects
Cyclic deformation behavior
Fatigue
Mean stress effects
Microstructure
Wheel and tire steels
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Summary:The present developments of rail-mounted traffic aim at higher speeds in the passenger and higher axle load in the freight traffic. As a consequence, a substantial increase of the loading of the wheels has to be regarded. Geometric changes at wheels and rails cause high cyclic loading in the dynamic system wheel/rail as a function of the course rate [ – ]. Since for wheel steels only a few systematic investigations of the fatigue behavior are available so far, the actual investigations concentrate on the relation between the local microstructure and the description of the fatigue behavior of highly stressed wheel steels. As test materials monoblock wheel steels and tire steels were selected in accordance with UIC specification in technically relevant heat treatment conditions. The cyclic deformation behavior is characterized and evaluated by stress – strain hysteresis as well as thermometrical and electrical measurements.
ISSN:1862-5282
2195-8556
DOI:10.1515/ijmr-2001-0161