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.
- Record URL:
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Corporate Authors:
Transportation Technology Center, Incorporated
55500 DOT Road
Pueblo, CO United States 81001Federal Railroad Administration
Office of Railroad Policy and Development, 1200 New Jersey Avenue, SE
Washington, DC United States 20590Federal Railroad Administration
Office of Research, Development, and Technology
Washington, DC United States -
Authors:
- Li, Dingqing
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0000-0001-5891-839X
- Publication Date: 2022-7
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report; Technical Report
- Features: Appendices; Figures; Photos; References; Tables;
- Pagination: 64p
Subject/Index Terms
- TRT Terms: Fatigue tests; Railroad wheels; Rolling contact; Slip (Fluid mechanics); Steel; Temperature; Wear
- Subject Areas: Railroads; Vehicles and Equipment;
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