WEAR STUDIES FOR STEEL WHEEL AND RAIL. I. MECHANISMS AND QUALITATIVE ANALYSIS

The report describes some of the recent work done at I.I.T. to understand the mechanisms of wear between wheel and rail, and is based on experiments conducted on the 1:4.5 I.I.T. wheel-rail simulation facility which is briefly discussed in the report. Tests were carried out to establish the effects of load and friction coefficient on wear rate. Techniques were developed to collect and analyze data on wear particles and wear tracks under the scanning electron microscope. Surface finish measurements were also carried out as a function of these parameters. The flake type wear particles obtained in all the tests were explained in terms of a delamination process originating from subsurface crack nucleation and coalescence. A number of SEM photographs are included to support the qualitative analysis presented.

• Supplemental Notes:
  • Sponsored in part by Association of American Railroads, Chicago, Ill. and General Motors Corp., La Grange, Ill. Electro-Motive Div.
• Corporate Authors:

  Illinois Institute of Technology

  Mechanical and Aerospace Engineering Department
  10 West 33rd Street, Perlstein Hall
  Chicago, IL  United States  60616

  Federal Railroad Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Association of American Railroads

  3140 South Federal Street
  Chicago, IL  United States  60605

  General Motors Corporation

  Warren, MI  United States  48090
• Authors:
  • Krishna, R
  • Kalpakjian, S
  • Kumar, S
• Publication Date: 1977-6

Media Info

• Pagination: 71 p.

Subject/Index Terms

• TRT Terms: Adhesion; Axle load force; Coefficient of friction; Durability tests; Friction; Loads; Locomotives; Railroad cars; Railroad rails; Railroad tracks; Rolling contact; Shelling (Metals); Wear; Wheel loads; Wheels
• Identifier Terms: Wheel Rail Dynamics Research Facility
• Old TRIS Terms: Axle loadings; Rail shelling
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00167061
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: IIT-TRANS-77-2 No. 7Intrm Rpt.
• Contract Numbers: DOT-OS-40103
• Files: NTIS, TRIS, USDOT
• Created Date: Oct 29 1977 12:00AM