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Comparison of wear and rolling contact fatigue behaviours of bainitic and pearlitic rails under various rolling-sliding conditions
- Source :
- Wear. :203455
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Rolling-sliding wear experiments were performed to investigate the wear and rolling contact fatigue (RCF) behaviours of a premium pearlitic rail (PH), a carbon-free bainitic rail (BH) and two standard pearlitic rails (U71Mn and U75V). The wear regime and RCF damage evolution of the PH and BH materials in terms of Tγ/A (i.e. creepages and contact pressures) were compared and analyzed. The high-hardness BH steel presented a wear resistance similar to U71Mn and U75V rail materials, whereas lower wear rate was shown by the PH steel. Concerning the RCF performance, the damage of BH steel (comparable to U75V) was more severe than that of PH steel (comparable to U71Mn). Finally, with the increase in creepages and pressures, the wear and RCF damage of both PH and BH steels increased. These information could provide a guide in choosing rail materials and in development of bainitic rails.
- Subjects :
- Materials science
Metallurgy
Rolling contact fatigue
Wear, rolling contact fatigue, railway vehicles
02 engineering and technology
Surfaces and Interfaces
021001 nanoscience & nanotechnology
Condensed Matter Physics
Surfaces, Coatings and Films
Wear resistance
020303 mechanical engineering & transports
0203 mechanical engineering
Mechanics of Materials
Materials Chemistry
Rolling sliding
0210 nano-technology
Subjects
Details
- ISSN :
- 00431648
- Database :
- OpenAIRE
- Journal :
- Wear
- Accession number :
- edsair.doi.dedup.....2ae217af67647c3305455be571226a8a