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Effects of Mo content on corrosion and tribocorrosion behaviours of Ti-Mo orthopaedic alloys fabricated by powder metallurgy

Xu, W; Chen, M; Lu, X; Zhang, D-W; Singh, H-P; Jian-shu, Y; Pan, Y; ... Liu, C-Z; + view all (2020) Effects of Mo content on corrosion and tribocorrosion behaviours of Ti-Mo orthopaedic alloys fabricated by powder metallurgy. Corrosion Science , 168 , Article 108557. 10.1016/j.corsci.2020.108557. Green open access

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Abstract

Effects of Mo content on corrosion and tribocorrosion of Ti-(8-20)Mo alloys fabricated by powder metallurgy (PM) were investigated. With a higher Mo content, the Ti-Mo alloys showed an increased corrosion resistance, and correspondingly their tribocorrosion resistance presented an initial increase but a subsequent decrease. Ti-16Mo alloy possessed the lowest wear rate of 1.0 × 10-3 mm3/m•N under tribocorrosion condition, which was about 30% of that of as-cast pure Ti (3.3 × 10-3 mm3/m•N) and 91% of that of Ti-6Al-4 V alloy (1.1 × 10-3 mm3/m•N), respectively. The highest tribocorrosion resistance and adequate corrosion resistance make the Ti-16Mo alloy a promising candidate for orthopaedic applications.

Type: Article
Title: Effects of Mo content on corrosion and tribocorrosion behaviours of Ti-Mo orthopaedic alloys fabricated by powder metallurgy
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.corsci.2020.108557
Publisher version: http://dx.doi.org/10.1016/j.corsci.2020.108557
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Ti-Mo alloys, corrosion resistance, tribocorrosion behavior, orthopaedic implant materials
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
URI: https://discovery.ucl.ac.uk/id/eprint/10092623
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