Regularities of the formation and the role of secondary structures in the improvement of the wear resistance of commercially pure titanium VT1-0

Boris Petrovich Gritsenko, Yu F. Ivanov, N. N. Koval', K. V. Krukovskii, N. V. Girsova, A. D. Teresov, I. V. Ratochka, I. P. Mishin

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Abstract

The paper deals with the study of the effect of surface and bulk modification of the structure of titanium VT1-0 on its tribological behavior. The optimal conditions of the treatment of titanium by an electron beam are determined: the duration of the electronbeam pulse is 50 μs, the number of pulses is three, and the electron beam energy density is 25 J/cm 2 for coarse-grained and 20 J/cm 2 for ultra-fine-grained titanium. These conditions favor a several-fold reduction of the material wear during friction. The friction surface morphology is examined and island secondary structures and a grooved structure with signs of seizure are found. It is supposed that friction results in the self-organization of stable secondary structures which yield a multifold increase in the wear rate of commercially pure titanium VT1-0.

Original languageEnglish
Pages (from-to)184-189
Number of pages6
JournalJournal of Friction and Wear
Volume33
Issue number3
DOIs
Publication statusPublished - 1 May 2012

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Keywords

  • friction
  • severe plastic deformation
  • submicro- and nanocrystalline structure
  • titanium
  • wear rate

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films

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