Development of Ni-free Ti-Mo-Sn Superelastic Alloys and Their Application to Medical Devices
Effects of heat treatment conditions on mechanical and superelastic properties of Ti-Mo-Sn alloy were investigated mainly by tensile testing. The specimens were heat-treated in the temperature range of 773-1273 K for 300 seconds. Youngs modulus and ultimate tensile strength of the specimens heat-treated at over 823 K decreased with increasing heat-treatment temperature. A maximum recovery strain of about 4％, including both genuine elastic and superelastic strain, was obtained in the wires heat-treated in the temperature range of 1073 -1273 K. Given these characteristics, it is expected a new class of Ni-free Ti-based superelastic guidewire and superelastic catheter.
A. Furukawa Y. Sutou M. Suzuki K.Yamauchi T. Takagi M.Nishida
Tohoku University Biomedical Engineering Research Organization 2-1 Seiryo-machi, Aoba-ku, Sendai 980 Department of Materials Scinece,, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-0 Department of Material Science and Engineering, Kumamoto University, Kumamoto 860-8555, Japan
国际会议
厦门
英文
724-727
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）