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

被引：37
作者：
Xin, Cheng [1 ]
Wang, Nan [1 ]
Chen, Yongnan [1 ]
He, Binbin [1 ]
Zhao, Qinyang [1 ]
Chen, Lei [2 ]
Tang, Yufei [2 ]
Luo, Binli [3 ]
Zhao, Yongqing [3 ]
Yang, Xiaokang [4 ]
机构：
[1] Changan Univ, Sch Mat Sci & Engn, Xian 710064, Peoples R China
[2] Xian Univ Technol, Sch Mat Sci & Engn, Shaanxi Prov Key Lab Corros & Protect, Xian 710064, Peoples R China
[3] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China
[4] Natl & Local Joint Engn Res Ctr Biomed Titanium A, Xian 710018, Peoples R China
来源：
MATERIALS & DESIGN | 2022年 / 215卷
关键词：
Corrosion; Ti 2 Cu phase; Dental materials; Cytotoxicity; Antibacterial properties; GALVANIC CORROSION; MECHANICAL-PROPERTIES; TITANIUM-ALLOY; BIO-CORROSION; COPPER; RESISTANCE; CAST; TI-6AL-4V; SILVER; IONS;
D O I：
10.1016/j.matdes.2022.110540
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of morphology of the Ti2Cu phase on biological corrosion and antibacterial properties of TiCu alloy was investigated by micro-galvanic corrosion. Elongated "micro-galvanic cells" were formed between lamellar Ti2Cu phase (L-Ti2Cu) and a-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. (c) 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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页数：11
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