Improved wear resistance of functional diamond like carbon coated Ti–6Al–4V alloys in an edge loading conditions

Dipankar Choudhury, Jürgen M. Lackner, Lukasz Major, Takehiro Morita, Yoshinori Sawae, Azuddin Bin Mamat, Ian Stavness, Chanchal K. Roy, Ivan Krupka

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This study investigates the durability of functional diamond-like carbon (DLC) coated titanium alloy (Ti–6Al–4V) under edge loading conditions for application in artificial hip joints. The multilayered (ML) functional DLC coatings consist of three key layers, each of these layers were designed for specific functions such as increasing fracture strength, adapting stress generation and enhancing wear resistance. A ‘ball-on-disk’ multi-directional wear tester was used in the durability test. Prior to the wear testing, surface hardness, modulus elasticity and Raman intensity were measured. The results revealed a significant wear reduction to the DLC coated Ti–6Al–4V disks compared to that of non-coated Ti–6Al–4V disks. Remarkably, the counterpart Silicon Nitride (Si3N4) balls also yielded lowered specific wear rate while rubbed against the coated disks. Hence, the pairing of a functional multilayered DLC and Si3N4 could be a potential candidate to orthopedics implants, which would perform a longer life-cycle against wear caused by edge loading.

Original languageEnglish
Pages (from-to)586-595
Number of pages10
JournalJournal of the Mechanical Behavior of Biomedical Materials
Volume59
DOIs
Publication statusPublished - Jun 1 2016

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Diamond
Wear resistance
Diamonds
Carbon
Wear of materials
Durability
Surface testing
Hip prostheses
Orthopedics
Silicon nitride
Titanium alloys
Fracture toughness
Life cycle
Elasticity
Hardness
titanium alloy (TiAl6V4)
Coatings
silicon nitride

All Science Journal Classification (ASJC) codes

  • Biomaterials
  • Biomedical Engineering
  • Mechanics of Materials

Cite this

Improved wear resistance of functional diamond like carbon coated Ti–6Al–4V alloys in an edge loading conditions. / Choudhury, Dipankar; Lackner, Jürgen M.; Major, Lukasz; Morita, Takehiro; Sawae, Yoshinori; Bin Mamat, Azuddin; Stavness, Ian; Roy, Chanchal K.; Krupka, Ivan.

In: Journal of the Mechanical Behavior of Biomedical Materials, Vol. 59, 01.06.2016, p. 586-595.

Research output: Contribution to journalArticle

Choudhury, Dipankar ; Lackner, Jürgen M. ; Major, Lukasz ; Morita, Takehiro ; Sawae, Yoshinori ; Bin Mamat, Azuddin ; Stavness, Ian ; Roy, Chanchal K. ; Krupka, Ivan. / Improved wear resistance of functional diamond like carbon coated Ti–6Al–4V alloys in an edge loading conditions. In: Journal of the Mechanical Behavior of Biomedical Materials. 2016 ; Vol. 59. pp. 586-595.
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