Shape memory and mechanical properties of biomedical Ti-Sc-Mo alloys

Takashi Maeshima, Minoru Nishida

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Ni-free Ti-Sc-Mo shape memory alloys are designed as a substitute for Ti-Ni alloys in the biomedical field. From results of bending and recovery test with heating, Ti-Sc-Mo alloys were found to have superior shape memory effect. The optimum composition for the shape memory effect was Ti-4.0 to 6.0Sc-6.0Mo alloys. The maximum shape recovery strain in the Ti-5.0Sc-6.0Mo alloy was 5.3% measured through cyclic tensile deformation. Vickers hardness and 0.2% proof stress were remarkably decreased and elongation was increased with Sc content. The marked grain refining was also achieved. The relationship between microstructure and mechanical properties was briefly discussed. Microstructure observations and XRD measurements before and after tensile deformation showed that the shape memory effect was associated with the stress induced βto α″ transformation.

Original languageEnglish
Pages (from-to)1101-1105
Number of pages5
JournalMaterials Transactions
Volume45
Issue number4
DOIs
Publication statusPublished - Apr 1 2004

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Shape memory effect
mechanical properties
tensile deformation
Mechanical properties
recovery
Recovery
microstructure
Microstructure
Vickers hardness
refining
shape memory alloys
elongation
Refining
Elongation
substitutes
Heating
heating
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Shape memory and mechanical properties of biomedical Ti-Sc-Mo alloys. / Maeshima, Takashi; Nishida, Minoru.

In: Materials Transactions, Vol. 45, No. 4, 01.04.2004, p. 1101-1105.

Research output: Contribution to journalArticle

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