Re-evaluating the wheel

Materials used for solid wheels in Europe are generally restricted to unalloyed steels with a maximum carbon content of 0.56% and tensile strengths of 820-950 MPa. Steel R7 is the most commonly used steel grade used for wheels. The demands placed on materials used for wheels and rails have increased with the introduction of high-speed rail. There are increased incidences of rolling contact fatigue, thermal fatigue and out-of roundness. Tests conducted by German Rail (DB) on new wheel materials are described. New materials evaluated included Japanese wheel steel, austempered ductile iron, and low-alloy steels S2 and S3. Simulation of rolling contact between wheel and rail was conducted on the DB wheel-rail test rig in Kirschmöser. A comparison of R7 with ADI is presented. (A)

  • Authors:
    • BANNASH, M
    • MADLER, K
  • Publication Date: 2006-9

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01043387
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Mar 6 2007 9:02AM