SLIDING FRICTION OF METALS IN CONTACT UNDER HIGH PRESSURE

In order to make clear the mechanism of adhesive force in train operation, friction coefficients between metals contacting with high pressure exceeding the yield point of the metal were studied. As an important factor affecting the friction coefficient of metal, the effects of the holding time of specimens in dry air (in a desiccator) were discussed. A sliding process is divided into three stages, namely initial, transient and final stage. In the initial stage, the friction coefficient is generally small and reaches only 1/2-1/3 times of that in the final stage. This fact would make possible an explanation that the adhesive force obtained from a running test on the rails is rather lower than that obtained from an adhesion test device in laboratory.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  JAPANESE NATIONAL RAILWAYS

  TOKYO,   Japan 
• Authors:
  • Miyairi, M
  • Tomizawa, M
  • Miura, K
• Publication Date: 1968-6

Media Info

• Pagination: p. 117-119
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 9
  • Issue Number: 2
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Adhesion; Coefficient of friction; Railroad rails; Skidding; Technology
• Geographic Terms: Japan
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00033179
• Record Type: Publication
• Report/Paper Numbers: Quart Rpt
• Files: TRIS
• Created Date: Jun 16 1973 12:00AM