High strength heat-treatable β-titanium alloy for additive manufacturing

M J Bermingham; Damon Kent; B Pace; Julie M Cairney; Matthew S Dargusch

doi:10.1016/j.msea.2020.139646

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High strength heat-treatable β-titanium alloy for additive manufacturing

Journal article

Peer reviewed

High strength heat-treatable β-titanium alloy for additive manufacturing

M J Bermingham, Damon Kent, B Pace, Julie M Cairney and Matthew S Dargusch

Materials Science & Engineering A, Vol.791, pp.1-7

2020

DOI: https://doi.org/10.1016/j.msea.2020.139646

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Abstract

Titanium alloys

Phase transformation

Stress/strain measurements

Metastable β-titanium alloys offer the highest strength of any class of titanium alloy due to their ability to be precipitation hardened. In this work, Ti–3Al–8V–6Cr–4Mo–4Zr was produced through wire arc additive manufacturing and the mechanical properties and microstructural response to heat treatments were investigated. In the solution treated condition, the alloy was primarily composed of the body-centre cubic β phase with very high ductility and moderate strength (σyield ≈ 860MPa). However, with post-build age hardening it was possible to control the size and spacing of hexagonal close-packed α-precipitates allowing highly customisable properties and very high strengths (σyield > 1600MPa).

Details

Title: High strength heat-treatable β-titanium alloy for additive manufacturing
Authors: M J Bermingham (Author) - The University of Queensland
Damon Kent (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - Legacy
B Pace (Author) - The University of Sydney
Julie M Cairney (Author) - The University of Sydney
Matthew S Dargusch (Author) - The University of Queensland
Publication details: Materials Science & Engineering A, Vol.791, pp.1-7
Publisher: Elsevier B.V
Date published: 2020
DOI: 10.1016/j.msea.2020.139646
ISSN: 1873-4936
Data Availability: The raw data required to reproduce these findings are available from the corresponding author on reasonable request.
Grants: ARC Research Hub for Advanced Manufacturing of Medical Devices, IH150100024, Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: School of Science and Engineering - Legacy; School of Science, Technology and Engineering
Language: English
Record Identifier: 99465007702621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Nanoscience & Nanotechnology

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