Effects of phase stability and processing on the mechanical properties of Ti–Nb based β Ti alloys

Damon Kent; Gui Wang; Matthew Dargusch

doi:10.1016/j.jmbbm.2013.07.007

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Effects of phase stability and processing on the mechanical properties of Ti–Nb based β Ti alloys

Journal article

Peer reviewed

Effects of phase stability and processing on the mechanical properties of Ti–Nb based β Ti alloys

Damon Kent, Gui Wang and Matthew Dargusch

Journal of the Mechanical Behavior of Biomedical Materials, Vol.28, pp.15-25

2013

DOI: https://doi.org/10.1016/j.jmbbm.2013.07.007

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Abstract

Biomedical Engineering

Materials Engineering

Mechanical Engineering

titanium

processing

phase stability

cold rolling

hot rolling

The influence of β phase stability on mechanical properties, deformation behaviours and phase composition were investigated for a series of Ti-24Nb-3Zr-2Sn-xMo alloys in response to hot and cold rolling. For the hot rolled alloys, the phase composition and deformation behaviours were largely consistent with those predicted on the basis of a Bo-Md plot and the Ms estimates. The deformation mechanisms involve growth and/or reorientation of plate-like martensite and/or twins. However, these are largely restricted in the cold rolled alloys due to the effects of grain refinement and residual stress. The cold rolled alloys exhibit the highest strengthening in combination with more limited ductility, which increased with increasing β phase stability. The moderately stable alloy, B, with e/a around 4.18 and Moeq∼10 wt% gave the greatest strengthening in response to cold rolling, which was related to intense localised grain refinement.

Details

Title: Effects of phase stability and processing on the mechanical properties of Ti–Nb based β Ti alloys
Authors: Damon Kent (Author) - University of Queensland
Gui Wang (Author) - University of Queensland
Matthew Dargusch (Author) - University of Queensland
Publication details: Journal of the Mechanical Behavior of Biomedical Materials, Vol.28, pp.15-25
Publisher: Elsevier Ltd.
Date published: 2013
DOI: 10.1016/j.jmbbm.2013.07.007
ISSN: 1751-6161; 1751-6161
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99448867902621
Output Type: Journal article

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Web Of Science research areas: Engineering, Biomedical; Materials Science, Biomaterials