Surface-hardened nanostructured Ti- and Zr-matrix composites for medical and engineering applications

Yu P. Sharkeev, V. A. Kukareko, E. V. Legostaeva, A. V. Byeli

Research output: Contribution to journalArticle

Abstract

Combined studies have been conducted on the structural-phase state and physical-mechanical and tribological properties of nanostructured titanium and zirconium subjected to ion-beam implantation or microplasma oxidation. Low-temperature ion-beam nitriding of the materials examined is shown to provide a 25-35-fold increase in the wear resistance of their surface layers and a 40% decrease in the friction coefficient for tribological interaction with contact surfaces. Microplasma oxidation of titanium in aqueous solution of phosphoric acid, hydroxylapatite and calcium carbonate powders enables calcium-phosphate coatings with high physical-mechanical properties to be produced. Tribological tests in a dry friction regime and in isotonic solution of sodium chloride have revealed that a nanostructured titanium substrate-calcium phosphate coating biocomposite exhibits a fairly high friction coefficient (0. 4-1. 0) in tribological interactions with ultrahigh molecular-weight polyethylene or bone tissue. A substantial improvement in the tribotechnical properties of nanostructured titanium and zirconium with modified surface layers makes them very promising materials for medical and engineering applications.

Original languageEnglish
Pages (from-to)1053-1059
Number of pages7
JournalRussian Physics Journal
Volume53
Issue number10
DOIs
Publication statusPublished - 1 Mar 2011

Fingerprint

titanium
engineering
microplasmas
composite materials
calcium phosphates
matrices
coefficient of friction
carbonates
surface layers
ion beams
mechanical properties
dry friction
coatings
oxidation
calcium carbonates
nitriding
phosphoric acid
sodium chlorides
wear resistance
bones

Keywords

  • Abc-pressing
  • Equal-channel angular pressing
  • Friction and wear
  • Ion-beam alloying
  • Microplasma oxidation
  • Nanostructure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Surface-hardened nanostructured Ti- and Zr-matrix composites for medical and engineering applications. / Sharkeev, Yu P.; Kukareko, V. A.; Legostaeva, E. V.; Byeli, A. V.

In: Russian Physics Journal, Vol. 53, No. 10, 01.03.2011, p. 1053-1059.

Research output: Contribution to journalArticle

Sharkeev, Yu P. ; Kukareko, V. A. ; Legostaeva, E. V. ; Byeli, A. V. / Surface-hardened nanostructured Ti- and Zr-matrix composites for medical and engineering applications. In: Russian Physics Journal. 2011 ; Vol. 53, No. 10. pp. 1053-1059.
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