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 language | English |
|---|---|
| Title of host publication | 11th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2018 |
| Publisher | TU Delft |
| Publication date | 2018 |
| Pages | 196-202 |
| ISBN (Print) | 9789461869630 |
| Publication status | Published - 2018 |
| Event | 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems - Lijm & Cultuur, Delft, Netherlands Duration: 24 Sept 2018 → 27 Sept 2018 Conference number: 11 |
Conference
| Conference | 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems |
|---|---|
| Number | 11 |
| Location | Lijm & Cultuur |
| Country/Territory | Netherlands |
| City | Delft |
| Period | 24/09/2018 → 27/09/2018 |
Keywords
- Switches and crossings (S&Cs)
- Deformation
- 3D X-Ray tomography
- 2D & 3D crack network
- Rolling contact fatigue (RCF)
- Railway grade steels