Surface treatments for boriding of Ti6Al4V alloy in view of applications as a biomaterial

被引：21
|
作者：
Peretti, V [1 ]
Ferraris, S. [1 ]
Gautier, G. [2 ]
Hellmich, C. [3 ]
Lahayne, O. [3 ]
Stella, B. [4 ]
Yamaguchi, S. [5 ]
Spriano, S. [1 ]
机构：
[1] Politecn Torino, DISAT, Corso Duca Abruzzi 24, I-10129 Turin, Italy
[2] CNR, Str Cacce 73, I-10135 Turin, Italy
[3] Tech Univ Wien, Karlspl 13, A-1040 Vienna, Austria
[4] Univ Torino, Dipartimento Sci & Tecnol Farmaco, Via Pietro Giuria 9, I-10125 Turin, Italy
[5] Chubu Univ, Dept Biomed Sci, Ctr Clin Examinat Practicum Biomed Sci, 200 Matsumoto Cho, Kasugai, Aichi 4878501, Japan
来源：
TRIBOLOGY INTERNATIONAL | 2018年 / 126卷
关键词：
Coating; Scratch test; Nanoindentation; SOLID-STATE DIFFUSION; TITANIUM; CORROSION; WEAR;
D O I：
10.1016/j.triboint.2018.05.006
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Even if Ti6Al4V has great biocompatibility, it cannot be used for several components of joint implants because of low wear and fretting resistance. This research is focused on improving the bio-tribological characteristics of Ti6Al4V alloy through a surface boriding process. The borided coating was characterized by microstructural and chemical analyses, hardness and adhesion tests. Adsorption of albumin was verified by surface zeta potential vs pH for characterizing interaction with physiological natural lubricants. A heat treatment at temperature near or above the beta transus allows to obtain a performant coating (thickness, hardness, adhesion) even if a change in microstructure of the substrate occurs.
引用
收藏
页码：21 / 28
页数：8
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