| Literature DB >> 27810733 |
I V Okulov1, A S Volegov2, H Attar3, M Bönisch4, S Ehtemam-Haghighi3, M Calin4, J Eckert5.
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 (77-84GPa) together with a high yield strength of about 1000MPa 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.Entities:
Keywords: Biomedical alloy; Deformation mechanism; Implant material; Low Young's modulus; Titanium alloy
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Year: 2016 PMID： 27810733 DOI： 10.1016/j.jmbbm.2016.10.013
Source DB: PubMed Journal: J Mech Behav Biomed Mater ISSN： 1878-0180