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Journal of Friction and Wear

, Volume 31, Issue 2, pp 113–120 | Cite as

Structure and tribological behavior of Ni-B and Co-B galvanic coatings

  • P. A. Vityaz’
  • V. A. KukarekoEmail author
  • L. S. Tsybul’skaya
  • Yu. N. Bekish
  • T. V. Gaevskaya
Article

Abstract

The structure and tribological properties of Ni-B and Co-B galvanic coatings with boron concentration from 4 to 20 at % are investigated. The coatings containing over 8 at % B are shown to have amorphous structures. Ni-B and Co-B coatings with boron concentrations preceding the onset of amorphization (6–7.5 at %) possess optimal tribological properties under dry sliding. Coatings with metastable amorphous structure demonstrate the worst tribological behavior. An increase in boron concentration up to 20 at % stabilizes the amorphous structure and improves the wear resistance, microhardness, and thermal stability of the galvanic coatings in question.

Key words

coating amorphous structure tribological behavior boron 

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Copyright information

© Allerton Press, Inc. 2010

Authors and Affiliations

  • P. A. Vityaz’
    • 1
  • V. A. Kukareko
    • 2
    Email author
  • L. S. Tsybul’skaya
    • 3
  • Yu. N. Bekish
    • 3
  • T. V. Gaevskaya
    • 3
  1. 1.Presidium of National Academy of Sciences of BelarusMinskBelarus
  2. 2.Joint Institute of Mechanical EngineeringNational Academy of Sciences of BelarusMinskBelarus
  3. 3.Research Institute of Physicochemical ProblemsBelarussian State UniversityMinskBelarus

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