2D and 3D characterization of rolling contact fatigue cracks in a manganese steel crossing wing rail

S. Dhar*, H. K. Danielsen, S. Fæster, C. J. Rasmussen, D. Juul Jensen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Rail wheel contact at switches and crossings(S&Cs) induces impact stresses along with normal and shear contact stresses, resulting in plastic deformation and eventually crack formation. A damaged and deformed wing rail of a manganese steel crossing is characterized. This includes a study of the microstructure, hardness and 3D crack network. The surface of the rail receives the maximum deformation resulting in a hardened top layer. The deformation is manifested in a high density of twins in the microstructure. A complex crack network is revealed in high resolution by X-ray tomography.
Original languageEnglish
Title of host publication11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018
PublisherTU Delft
Publication date2018
Pages196-202
ISBN (Print)9789461869630
Publication statusPublished - 2018
Event11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems - Lijm & Cultuur, Delft, Netherlands
Duration: 24 Sep 201827 Sep 2018
Conference number: 11

Conference

Conference11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems
Number11
LocationLijm & Cultuur
CountryNetherlands
CityDelft
Period24/09/201827/09/2018

Keywords

  • Switches and crossings (S&Cs)
  • Deformation
  • 3D X-Ray tomography
  • 2D & 3D crack network
  • Rolling contact fatigue (RCF)
  • Railway grade steels

Cite this

Dhar, S., Danielsen, H. K., Fæster, S., Rasmussen, C. J., & Juul Jensen, D. (2018). 2D and 3D characterization of rolling contact fatigue cracks in a manganese steel crossing wing rail. In 11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018 (pp. 196-202 ). TU Delft.