Antibacterial property and bioadaptability of Ti6Al4V alloy with a silvered gradient nanostructured surface layer

被引：9
|
作者：
Liu, Qin [1 ,2 ]
Li, Yong-Xiang [1 ,2 ]
Qiu, Jing [1 ,2 ]
Chen, Mian [1 ,2 ]
Wang, Jie [2 ]
Hu, Jian [1 ,2 ]
机构：
[1] East China Jiaotong Univ, Inst Adv Mat, Nanchang 330013, Jiangxi, Peoples R China
[2] East China Jiaotong Univ, Jiangxi Key Lab Nanobiomat, Nanchang 330013, Jiangxi, Peoples R China
来源：
RARE METALS | 2022年 / 41卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Gradient nanostructure; Ti6Al4V; Silver; Antibacterial property; Bioadaptability; GRAIN-REFINEMENT MECHANISM; COMMERCIALLY PURE TITANIUM; TI-6AL-4V ALLOY; BIOLOGICAL-PROPERTIES; FATIGUE;
D O I：
10.1007/s12598-021-01818-w
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a silvered gradient nanostructured (GNS) layer was successfully fabricated on Ti6Al4V surface by means of surface ultrasonic rolling treatment (SURT) combined with silvering process. Surface characteristics, mechanical properties, corrosion resistance, antibacterial ability and cytotoxicity of GNS Ag/Ti6Al4V were investigated in comparison with those of coarse-grained (CG) and GNS Ti6Al4V samples. Owing to the greatly enhanced diffusion kinetics of Ag in the GNS layer, surface silvering on GNS Ti6Al4V was achieved at a relatively low temperature (500 degrees C), and the release rate of Ag+ was substantially accelerated, which endowed GNS Ag/Ti6Al4V with excellent antibacterial property. Moreover, improved wear and corrosion resistance of GNS Ag/Ti6Al4V can be achieved without cytotoxicity, indicating excellent bioadaptability. Graphic abstract
引用
收藏
页码：621 / 629
页数：9
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