Steel in Translation

, Volume 47, Issue 1, pp 17–20 | Cite as

Dry slipping steel–steel contact at high current density

Article

Abstract

The behavior of steel 3 in dry slipping under the action of high-density electric current is studied. In these conditions, the surface layer undergoes plastic deformation; its temperature rises; and new phases and structural defects are formed. That gives rise to a layer of secondary structures. The basic factor disintegrating the surface layer is the contact current density. The mean contact temperature and layer thickness of the secondary structures increase with increase in current density. The variation in wear rate and electrical conductivity with change in contact temperature is studied. The wear rate depends linearly on the contact temperature in normal wear. Catastrophic wear appears as sharp increase in the wear rate and simultaneous decrease in the contact electrical conductivity at 500—600°C. The thickness of the layer of secondary structures is 50 μm in these frictional conditions.

Keywords

mean contact temperature secondary structures friction wear rate slipping-contact electrical conductivity 

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Copyright information

© Allerton Press, Inc. 2017

Authors and Affiliations

  • M. I. Aleutdinova
    • 1
    • 2
  • V. V. Fadin
    • 1
  • V. E. Rubtsov
    • 1
    • 3
  1. 1.Institute of Strength Physics and Materials Science, Siberian BranchRussian Academy of SciencesTomskRussia
  2. 2.Seversk Technological InstituteNational Research Nuclear University, Moscow Institute of Physics ResearchSeverskRussia
  3. 3.Tomsk Polytechnic UniversityTomskRussia

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