Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9796014 | Materials Science and Engineering: A | 2005 | 6 Pages |
Abstract
Shape memory characteristics of Ti-22Nb-(2-8)Zr(at.%) biomedical alloys were investigated by using tensile tests and X-ray diffraction (XRD) measurement. The alloy ingots were fabricated by an arc melting method. The ingots were cold-rolled by a reduction up to 95% in thickness at room temperature. All the alloys were solution-treated at 1173Â K for 1.8Â ks. The alloys subjected to the solution treatment exhibited large elongations ranging between 28 and 40%. The martensitic transformation temperature decreased by 38Â K with 1Â at.% increase of Zr content. The maximum recovered strain of 4.3% was obtained in the Ti-22Nb-4Zr(at.%) alloy. Ti-22Nb-(2-4)Zr(at.%) and Ti-22Nb-6Zr(at.%) alloys exhibited stable shape memory effect and superelastic behavior at room temperature, respectively.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J.I. Kim, H.Y. Kim, T. Inamura, H. Hosoda, S. Miyazaki,