Inorganic Materials: Applied Research

, Volume 8, Issue 2, pp 313–317 | Cite as

Phase composition and defect substructure of double surfacing, formed with V–Cr–Nb–W powder wire on steel

  • S. V. Konovalov
  • V. E. Kormyshev
  • V. E. Gromov
  • Yu. F. Ivanov
  • E. V. Kapralov
General Purpose Materials
  • 25 Downloads

Abstract

The analysis of phase composition, defect substructure, and mechanical and tribological properties of Hardox 450 steel after single and double surfacing of C–V–Cr–Nb–W containing wire was carried out by methods of modern physical materials science. The increase in the wear resistance of the material compared to the original steel by 140–150 times and reduction of the friction coefficient by 2–2.5 times was established. The change in the fine structure and phase composition of the surfaced metal was analyzed. It was shown that the established effects could be associated with the formation of a multiphase nanoscale and submicron structure, hardening of which was associated with the formation of martensitic structure of α-matrix and the presence of a high volume fraction of carbide phase inclusions based on Fe, Cr, W and Nb. Formation of resurfacing led to repeated increase in the volume fraction of the carbide phase and the absence of the oxide phase.

Keywords

steel Hardox 450 cladding structure phase composition abrasion resistance friction coefficient microhardness 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • S. V. Konovalov
    • 1
  • V. E. Kormyshev
    • 1
  • V. E. Gromov
    • 1
  • Yu. F. Ivanov
    • 2
  • E. V. Kapralov
    • 1
  1. 1.Siberian State Industrial UniversityNovokuznetskRussia
  2. 2.Institute of High Current Electronics, Siberian BranchRussian Academy of SciencesTomskRussia

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