Effect of heat treatment and Sn content on superelasticity in biocompatible TiNbSn alloys

Eiji Takahashi, Tasuku Sakurai, Sadao Watanabe, Naoya Masahashi, Shuji Hanada

研究成果: Article査読

239 被引用数 (Scopus)

抄録

Martensitic transformation and tensile properties of 4 to 5 mol%Sn-doped Ti-16 mol%Nb alloys consisting of biocompatible elements were investigated to provide superelasticity for biomedical applications as a function of heat treatment and Sn content. Martensitic transformation (bcc to orthorhombic structure) is accelerated at such quenching conditions that the bcc parent phase is slightly decomposed. Martensitic transformation temperature decreases rapidly with increasing Sn content. In-situ optical microscopic observation on cooling and heating indicates that the martensite is thermoelastic, corresponding to small temperature hysteresis between the martensitic and the reverse transformations, which is determined by differential scanning calorimetry. By controlling the heat treatment condition and Sn content, large superelastic strain is obtained at room temperature.

本文言語English
ページ(範囲)2978-2983
ページ数6
ジャーナルMaterials Transactions
43
12
DOI
出版ステータスPublished - 2002 12

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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