Biological corrosion behaviour and antibacterial properties of Ti-Cu alloy with different Ti2Cu morphologies for dental applications

Cheng Xin; Nan Wang; Yongnan Chen; Binbin He; Qinyang Zhao; Lei Chen; Yufei Tang; Binli Luo; Yongqing Zhao; Xiaokang Yang

Materials & Design (Mar 2022)

Biological corrosion behaviour and antibacterial properties of Ti-Cu alloy with different Ti2Cu morphologies for dental applications

Cheng Xin,
Nan Wang,
Yongnan Chen,
Binbin He,
Qinyang Zhao,
Lei Chen,
Yufei Tang,
Binli Luo,
Yongqing Zhao,
Xiaokang Yang

Affiliations

Cheng Xin: School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China
Nan Wang: School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China
Yongnan Chen: School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China; Corresponding authors.
Binbin He: School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China
Qinyang Zhao: School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China; Corresponding authors.
Lei Chen: Shaanxi Province Key Laboratory of Corrosion and Protection, School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710064, China
Yufei Tang: Shaanxi Province Key Laboratory of Corrosion and Protection, School of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710064, China; Corresponding authors.
Binli Luo: Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China
Yongqing Zhao: Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China
Xiaokang Yang: National and Local Joint Engineering Research Center for Biomedical Titanium Alloy Materials, Xi’an 710018, China

Journal volume & issue: Vol. 215
p. 110540

Abstract

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The influence of morphology of the Ti2Cu phase on biological corrosion and antibacterial properties of Ti-Cu alloy was investigated by micro-galvanic corrosion. Elongated “micro-galvanic cells” were formed between lamellar Ti2Cu phase (L-Ti2Cu) and α-Ti matrix due to the different Volta potentials. The corrosion rate (Vcorr) of L-Ti2Cu was twice that of granular Ti2Cu phase (G-Ti2Cu) because lamellar Ti2Cu phase had more galvanic interface. The release of Cu2+ ions in L-Ti2Cu was 55 % higher than G-Ti2Cu, reaching 99.5 % of the antibacterial rate in L-Ti2Cu and providing a great potential in clinical application for dental implants.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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