%0 journal article
%@ 1751-6161
%A Okulov, I.V., Volegov, A.S., Attar, H., Boenisch, M., Ehtemam-Haghighi, S., Calin, M., Eckert, J.

%D 2017
%J Journal of the Mechanical Behavior of Biomedical Materials

%P 866-871 
%R doi:10.1016/j.jmbbm.2016.10.013
%T Composition optimization of low modulus and high-strength TiNb-based alloys for biomedical applications
%U https://doi.org/10.1016/j.jmbbm.2016.10.013
 
%X 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.