Mechanical biocompatibilities of titanium alloys for biomedical applications

Mitsuo Niinomi

Research output: Contribution to journalReview articlepeer-review

920 Citations (Scopus)


Young's modulus as well as tensile strength, ductility, fatigue life, fretting fatigue life, wear properties, functionalities, etc., should be adjusted to levels that are suitable for structural biomaterials used in implants that replace hard tissue. These factors may be collectively referred to as mechanical biocompatibilities. In this paper, the following are described with regard to biomedical applications of titanium alloys: the Young's modulus, wear properties, notch fatigue strength, fatigue behaviour on relation to ageing treatment, improvement of fatigue strength, fatigue crack propagation resistance and ductility by the deformation-induced martensitic transformation of the unstable β phase, and multifunctional deformation behaviours of titanium alloys.

Original languageEnglish
Pages (from-to)30-42
Number of pages13
JournalJournal of the Mechanical Behavior of Biomedical Materials
Issue number1
Publication statusPublished - 2008 Jan
Externally publishedYes

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Mechanics of Materials


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