Journal
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Volume 48, Issue -, Pages 11-20Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.msec.2014.11.010
Keywords
Superelasticity; Reaystallization texture; Biomaterial; Ti alloy; Martensitic transformation
Categories
Funding
- JSPS KAKENHI [26249104]
- MEXT KAKENHI [25102704]
- Grants-in-Aid for Scientific Research [25102704, 26249104] Funding Source: KAKEN
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A new class of Ti-50Zr base biomedical superelastic alloys was developed in this study. The (Ti-Zr)-Mo-Sn alloys exhibited a shape memory effect and superelastic property by adjusting Mo and Sn contents. The (Ti-Zr)-1.5Mo-3Sn alloy revealed the most stable superelasticity among (Ti-Zr)-(1-2)Mo-(2-4)Sn alloys. The superelastic recovery strain showed a strong dependence on heat treatment temperature after cold working in the (Ti-Zr)1.5Mo-3Sn alloy. The superelastic recovery strain increased as the heat treatment temperature increased although the critical stress for slip decreased. The (Ti-Zr)-1.5Mo-3Sn alloy heat treated at 1073 K exhibited excellent superelastic properties with a large recovery strain as large as 7% which is due to the strong {001}(beta)< 110 >(beta) recrystallizadon texture. (C) 2014 Elsevier B.V. All rights reserved.
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