Apparatus and Technique for Studying Friction and Wear of Materials in a Liquid Nitrogen Medium,

Abstract

The design and operation of an apparatus, MTCH-1, for studying friction and wearing processes at low temperature is described. The ends of 2 hollow cylindrical samples outside diam. 16 x inside diam. 8 x 12 mm and outside diam. 15 x inside diam. 9 x 12 mm., resp., immersed in liq. N were rotating one against the other at a const. velocity of 0.039 m/sec under specific loadings of 0.2-1.OMN/m(superscript 2). The wearing of materials were estd. by linear measurements or by weighing. An equation to estimate the friction factor and results for some pure metals (Fe, Mo, Tl, Al) and special steel 38KhmYua are presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 09, 1970
Accession Number
AD0716972

Entities

People

  • A. A. Zaporozhets

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Equations
  • Friction
  • Low Temperature
  • Materials
  • Measurement
  • Nitrogen

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Mathematics or Statistics
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).