Development of beta titanium alloys with low Young's modulus

T. Ozski, H. Matsumoto, T. Miyazaki, M. Hssegawa, S. Watanabe, S. Hanada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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

Original languageEnglish
Title of host publicationMedical Device Materials II - Proceedings of the Materials and Processes for Medical Devices Conference 2004
EditorsM. Helmus, D. Medlin
Pages197-202
Number of pages6
Publication statusPublished - 2005 Dec 1
EventMedical Device Materials II - Materials and Processes for Medical Devices Conference 2004 - St. Paul, MN, United States
Duration: 2004 Aug 252004 Aug 27

Publication series

NameMedical Device Materials II - Proceedings of the Materials and Processes for Medical Devices Conference 2004

Other

OtherMedical Device Materials II - Materials and Processes for Medical Devices Conference 2004
CountryUnited States
CitySt. Paul, MN
Period04/8/2504/8/27

ASJC Scopus subject areas

  • Engineering(all)

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