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Elastic deformation behaviour of Ti–24Nb–4Zr–7.9Sn for biomedical applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
2409 110 2007 10 PDF Available
Title
Elastic deformation behaviour of Ti–24Nb–4Zr–7.9Sn for biomedical applications
Abstract

In this paper, the elastic deformation behaviour of a recently developed β-type titanium alloy Ti–24Nb–4Zr–7.9Sn (wt.%) that consists of non-toxic elements and is intended for biomedical applications is described. Tensile tests show that this alloy in the as hot-rolled state exhibits peculiar non-linear elastic behaviour with maximum recoverable strain up to 3.3% and incipient Young’s modulus of 42 GPa. Solution treatment at high temperature has trivial effect on super-elasticity but decreases strength and slightly increases the incipient Young’s modulus. Ageing treatment in the (α + β) two-phase field increases both strength and Young’s modulus and results in a combination of high strength and relatively low elastic modulus. In spite of the formation of the α phase, short time ageing has no effect on super-elasticity, whereas the non-linear elastic behaviour transforms gradually to normal linear elasticity with the increase of ageing time. We suggest sluggish, partially reversible processes of stress-induced phase transformation and/or incipient kink bands as the origin of the above peculiar elastic behaviour.

Keywords
Biomedical titanium alloy; Young’s modulus; Superelasticity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 3, Issue 2, March 2007, Pages 277–286
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us