TY - GEN
T1 - Effect of small change in chemical composition of TNTZ used in biomedical applications on its superelastic behavior
AU - Niinomi, M.
AU - Akahori, T.
AU - Nakai, M.
AU - Kawakita, N.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The Nb content of TNTZ (Ti-29Nb-13TaA6Zr) was changed by 1 mass% to 2 mass% below 30 mass%. The change in the behavior of functionalities such as superelasticity and the shape- memory effect was investigated by tensile loading-unloading tests, X-ray analysis and differential scanning calorimetric (DSC) analysis. When the Nb content is below approximately 28 mass%, the tensile loading-unloading stress-strain curve is similar to that representing the general shape-memory behavior, which occurs due to deformation induced martensitic transformation and its reversion. When the Nb content ranges from approximately 29 mass% to 30 mass%, the tensile loading-unloading curve exhibits superelastic behavior that cannot be explained by deformation- induced martensitic transformation and its reversion. A change in the chemical content of Nb in TNTZ within a very narrow range alters the superelastic behavior of this alloy.
AB - The Nb content of TNTZ (Ti-29Nb-13TaA6Zr) was changed by 1 mass% to 2 mass% below 30 mass%. The change in the behavior of functionalities such as superelasticity and the shape- memory effect was investigated by tensile loading-unloading tests, X-ray analysis and differential scanning calorimetric (DSC) analysis. When the Nb content is below approximately 28 mass%, the tensile loading-unloading stress-strain curve is similar to that representing the general shape-memory behavior, which occurs due to deformation induced martensitic transformation and its reversion. When the Nb content ranges from approximately 29 mass% to 30 mass%, the tensile loading-unloading curve exhibits superelastic behavior that cannot be explained by deformation- induced martensitic transformation and its reversion. A change in the chemical content of Nb in TNTZ within a very narrow range alters the superelastic behavior of this alloy.
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U2 - 10.1361/cp2007mpmd130
DO - 10.1361/cp2007mpmd130
M3 - Conference contribution
AN - SCOPUS:63449141125
SN - 9780871708618
T3 - Medical Device Materials IV: Proceedings of the Materials and Processes for Medical Devices Conference 2007
SP - 130
EP - 135
BT - Medical Device Materials IV
T2 - Medical Device Materials IV: Materials and Processes for Medical Devices Conference 2007
Y2 - 23 September 2007 through 25 September 2007
ER -