Fatigue and wear evaluation of Ti-Al-Nb alloys for biomedical applications

C. J. Boehlert, C. J. Cowen, J. P. Quast, T. Akahori, M. Niinomi

Research output: Contribution to journalArticle

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Abstract

In this work the fatigue and wear behavior of Ti-15Al-33Nb(at.%) and Ti-21Al-29Nb(at.%) was evaluated and compared to that for other titanium-based biomedical implant alloys, in particular Ti-6Al-4V(wt.%). Fatigue stress versus life curves were obtained for tests performed at room temperature in air at a stress ratio of R = 0.1 for maximum stresses between 75%-90% of the ultimate tensile strength. The results indicated that the fatigue strength and lives of the as-processed alloys are comparable to that for Ti-6Al-4V(wt.%). Heat treatment significantly increased the orthorhombic-phase volume fractions in the alloys and resulted in reduced fatigue strength. The wear resistance for the alloys was significantly greater than that for Ti-6Al-4V(wt.%). Based on the current results, it is proposed that titanium-aluminum-niobium alloys will be of considerable future interest for biomedical applications.

LanguageEnglish (US)
Pages323-330
Number of pages8
JournalMaterials Science and Engineering C
Volume28
Issue number3
DOIs
StatePublished - Apr 1 2008

Profile

Wear of materials
Fatigue of materials
evaluation
titanium
Titanium
niobium alloys
Niobium alloys
stress ratio
wear resistance
aluminum alloys
tensile strength
Wear resistance
Aluminum alloys
Volume fraction
heat treatment
Tensile strength
Heat treatment
titanium-niobium-aluminum alloy
air
room temperature

Keywords

  • Biocompatibility
  • Fatigue
  • Hardness
  • Titanium
  • Wear

ASJC Scopus subject areas

  • Biomaterials

Cite this

Fatigue and wear evaluation of Ti-Al-Nb alloys for biomedical applications. / Boehlert, C. J.; Cowen, C. J.; Quast, J. P.; Akahori, T.; Niinomi, M.

In: Materials Science and Engineering C, Vol. 28, No. 3, 01.04.2008, p. 323-330.

Research output: Contribution to journalArticle

Boehlert, C. J. ; Cowen, C. J. ; Quast, J. P. ; Akahori, T. ; Niinomi, M./ Fatigue and wear evaluation of Ti-Al-Nb alloys for biomedical applications. In: Materials Science and Engineering C. 2008 ; Vol. 28, No. 3. pp. 323-330
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