TY - GEN
T1 - Development of beta titanium alloys with low Young's modulus
AU - Ozski, T.
AU - Matsumoto, H.
AU - Miyazaki, T.
AU - Hssegawa, M.
AU - Watanabe, S.
AU - Hanada, S.
PY - 2005
Y1 - 2005
N2 - Dynamic Young's modulus of ß phase Ti-Nb binary alloys and Ti-Nb-Sn and Ti-Nb-O ternary alloys was measured at room temperature as a function of composition along with microstructural observations. Young's modulus of solution treated and quenched binary alloys exhibits a minimum value of 62 GPa for Ti-42wt.%Nb. Transmission electron microscopy indicates that athermal ω transformation is induced in unstable ß alloys, and the minimum in Young's modulus appears at a composition where athermal ω transformation is almost completely suppressed by quenching, as alloying content is increased. It is found that Sn and O additions suppress ω transformation and Young's modulus of solution treated and quenched alloys is decreased to 40-55 GPa by optimizing compositions in Ti-Nb-Sn and Ti-Nb-O alloys in consideration of the stability of ß phase. Composition dependence of Young's modulus can be estimated by the theoretical DV-Xa cluster method. Copyright
AB - Dynamic Young's modulus of ß phase Ti-Nb binary alloys and Ti-Nb-Sn and Ti-Nb-O ternary alloys was measured at room temperature as a function of composition along with microstructural observations. Young's modulus of solution treated and quenched binary alloys exhibits a minimum value of 62 GPa for Ti-42wt.%Nb. Transmission electron microscopy indicates that athermal ω transformation is induced in unstable ß alloys, and the minimum in Young's modulus appears at a composition where athermal ω transformation is almost completely suppressed by quenching, as alloying content is increased. It is found that Sn and O additions suppress ω transformation and Young's modulus of solution treated and quenched alloys is decreased to 40-55 GPa by optimizing compositions in Ti-Nb-Sn and Ti-Nb-O alloys in consideration of the stability of ß phase. Composition dependence of Young's modulus can be estimated by the theoretical DV-Xa cluster method. Copyright
UR - http://www.scopus.com/inward/record.url?scp=31744436551&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=31744436551&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:31744436551
SN - 0871708248
T3 - Medical Device Materials II - Proceedings of the Materials and Processes for Medical Devices Conference 2004
SP - 197
EP - 202
BT - Medical Device Materials II - Proceedings of the Materials and Processes for Medical Devices Conference 2004
A2 - Helmus, M.
A2 - Medlin, D.
T2 - Medical Device Materials II - Materials and Processes for Medical Devices Conference 2004
Y2 - 25 August 2004 through 27 August 2004
ER -