[G] Biomaterials Development and Clinics(1)

[270] Microstructure and mechanical properties of Ti-6Al-7Nb alloy by high-pressure sliding in reciprocating motion

*ASHIDA Maki¹, OTSUKA Eiichi¹, CHEN Peng¹, TAKIZAWA Yoichi², YUMOTO Manabu², OTAGIRI Yoshiharu², HORITA Zenji³, HANAWA Takao¹ (1. Inst. of Biomaterial and Bioengineering, Tokyo Medical and Dental Univ., 2. Nagano Forging Co., Ltd, 3. Kyushu Inst. of Technology)

Keywords:チタン、生体材料、HPS加工、Ti-6Al-7Nb合金

本研究では、Ti-6Al-7Nb合金8mmφ棒材に、押出長さを5mm2Rとし往復HPS加工を施した結果、全体的に結晶粒が微細化され、引張強さが向上した。