Corrosion behavior of an ultrafine-grained Ti6Al4V-5Cu alloy in artificial saliva containing fluoride ions

被引：2

作者：

Liu, Hui ^{[1
]}

Shi, Lizhen ^{[1
,2
]}

Li, Susu ^{[1
,2
]}

Zhang, Shuyuan ^{[1
]}

Wang, Hai ^{[1
]}

Ren, Ling ^{[1
]}

Yang, Ke ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China

[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2025年 / 212卷

关键词：

Cu -containing titasknium alloy; Grain refinement; Fluoride ions; Corrosion; Dental application; PURE TITANIUM; ANTIBACTERIAL; ACID; DISSOLUTION; RESISTANCE; CALCIUM; SURFACE; LAYER; MG; PH;

D O I：

10.1016/j.jmst.2024.04.086

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ti6Al4V alloy has been widely used in dental applications, such as orthodontic mini-implants. However, it has been reported that fluoride ions could obviously accelerate the corrosion of implant materials and affect their performance. This work aimed to improve the F- erosion resistance of Ti6Al4V alloy through the strategy of both Cu addition and grain refinement. As contrasted with Ti6Al4V alloy, both the coarseand ultrafine-grained Ti6Al4V-5Cu alloys effectively mitigated the acceleration of the fluoride ions to the anode process, because Cu substituents blocked the continuous damage of F<middle dot>O doped in the passive film. Furthermore, grain refinement enhanced the protective ability of the passive film, more oxides and less adsorption amount of fluorides presented in the passive film of ultrafine-grained Ti6Al4V-5Cu alloy than those of coarse-grained Ti6Al4V-5Cu alloy. Under the combination of Cu alloying and grain refinement, the ultrafine-grained Ti6Al4V-5Cu alloy is greatly appropriate for the fabrication of orthodontic devices. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

引用

页码：259 / 271

页数：13

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