Composition optimization of low modulus and high-strength TiNb-based alloys for biomedical applications

Okulov, I. V., Volegov, A. S., Attar, H., Boenisch, M., Ehternam-Haghighi, S., Calin, M. and Eckert, J. (2017) Composition optimization of low modulus and high-strength TiNb-based alloys for biomedical applications. Journal of the Mechanical Behavior of Biomedical Materials, 65 866-871. doi:10.1016/j.jmbbm.2016.10.013


Author Okulov, I. V.
Volegov, A. S.
Attar, H.
Boenisch, M.
Ehternam-Haghighi, S.
Calin, M.
Eckert, J.
Title Composition optimization of low modulus and high-strength TiNb-based alloys for biomedical applications
Journal name Journal of the Mechanical Behavior of Biomedical Materials   Check publisher's open access policy
ISSN 1878-0180
1751-6161
Publication date 2017-01-01
Year available 2017
Sub-type Article (original research)
DOI 10.1016/j.jmbbm.2016.10.013
Open Access Status Not yet assessed
Volume 65
Start page 866
End page 871
Total pages 6
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 2502 Biomaterials
2204 Biomedical Engineering
2211 Mechanics of Materials
Abstract The effect of chemical composition on microstructure and tensile properties of a series of low modulus Ti-Nb-Cu-Ni-Al alloys was studied. These alloys consist of primary micrometer-sized β-Ti dendrites surrounded by intermetallic phases. The morphology of the intermetallic phases is strongly affected by composition. Due to the composite microstructure, the alloys exhibit a low Young's modulus (77–84 GPa) together with a high yield strength of about 1000 MPa as well as moderate tensile ductility. The results demonstrate that complete substitution of Al by Ti reduces the Young's modulus by 5%. Increasing Nb content at the expense of Ti causes a significant improvement of tensile ductility.
Keyword Biomedical alloy
Deformation mechanism
Implant material
Low Young's modulus
Titanium alloy
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID PITN-GA-2010–264635
EC 111/26-1
ERC-2013-ADG-340025
100111842
13795/2379
02.A03.21.0006
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Created: Fri, 16 Jun 2017, 08:22:52 EST by Anthony Yeates on behalf of Learning and Research Services (UQ Library)