ULTRASONIC INVESTIGATION OF THE MATERIAL PROPERTIES IN THE COLD-WORKED ZONE OF WHEELS AND RAILS

The gradual development and character of the cold-worked zones on railroad wheels and rails can be studied nondestructively with surface waves propagated along the surfaces. This allows more samples to be examined at lower cost. Because the Poisson's ratio in a cold-worked layer increases and because two metals having different Poisson's ratios but joined at a common boundary behave differently in a fatigue environment, new significance may be given to studies of rail and wheel failures near to the rolling surfaces. Differing behavior of the wheel and rail surfaces when excited by transducers may be correlated with fundamental differences in the two cold-worked zones.

  • Supplemental Notes:
    • Supported in cooperation with the Association of American Railroads, Federal Railroad Administration and Railway Wheel Association. Sixth International Wheelset Congress, October 22-26, 1978, Colorado Springs, Colorado.
  • Corporate Authors:

    American Iron and Steel Institute

    230 North Michigan Avenue
    Chicago, IL  USA  60601
  • Authors:
    • Bray, D E
  • Publication Date: 1978-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 14 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184157
  • Record Type: Publication
  • Source Agency: American Iron and Steel Institute
  • Report/Paper Numbers: Volume 1 Tech Paper
  • Files: TRIS
  • Created Date: Dec 12 1978 12:00AM