Rolling Contact Fatigue Testing of Two Different Wheel Steels Under Various Temperatures and Slip Ratios

This report presents the results and findings from a testing program conducted to investigate how wheel temperature may affect wheel surface performance, i.e., the development of rolling contact fatigue (RCF) and wear from November 2019. Under this testing program, a twin disc test machine was used to test two different types of wheel steels (i.e., cast and forged) under a range of temperatures (i.e., ambient to 800 ℉) and slip ratios from 0 to 0.75 percent. This testing program included a total of 32 tests, covering two types of wheel materials, four different temperatures, four slip ratios, and various traction coefficients as a ratio of longitudinal and vertical wheel/rail contact forces.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report; Technical Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 64p

Subject/Index Terms

Filing Info

  • Accession Number: 01853599
  • Record Type: Publication
  • Report/Paper Numbers: DOT/FRA/ORD-22/26
  • Files: TRIS, ATRI, USDOT
  • Created Date: Jul 30 2022 4:38PM