EFFECT OF ALBUMIN PROTEINS ON THE ELECTROCHEMICAL BEHAVIOUR OF Ti6Al7Nb ALLOY IN SIMULATED BODY FLUID

被引：0

作者：

Mareci, Daniel ^{[1
]}

Cailean, Adrian ^{[1
]}

Bolat, Georgiana ^{[1
]}

Cretescu, Igor ^{[1
]}

Sutiman, Daniel ^{[1
]}

机构：

[1] Gh Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Iasi 700500, Romania

来源：

STUDIA UNIVERSITATIS BABES-BOLYAI CHEMIA | 2009年 / 54卷

关键词：

Ti6Al7Nb alloy; albumin; polarization resistance; impedance; corrosion; FETAL BOVINE SERUM; IMPEDANCE SPECTROSCOPY; CORROSION-RESISTANCE; PASSIVE FILM; PHYSIOLOGICAL SOLUTION; CALCIUM-PHOSPHATE; IMPLANT MATERIALS; TI-6AL-7NB ALLOY; SODIUM-SULFATE; TITANIUM;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The purpose of this study was to investigate the effect of human albumin proteins on the corrosion behaviour of Ti6Al7Nb alloy in Hank's Balanced Salt Solution (HBSS) using electrochemical polarization and electrochemical impedance spectroscopy techniques. The results showed that the presence of albumin in HBSS had a significant influence on the zero current potential (ZCP), polarization resistance (R-P) and capacitance (C). For the polarization scan, an albumin addition of 37.5 mg/ml to the HBSS significantly moved the ZCP towards a more negative (cathodic) potential and inhibited the cathodic corrosion reaction. The R-P value for Ti6Al7Nb alloy immersed in HBSS are high (order of 5x10(5) Omega cm(2)) and increased after albumin addition (order of 10(6) Omega cm(2)) with increasing potential from -500 mV to 1000 mV indicative of albumin adsorption. The presence of albumin proteins in HBSS improved the corrosion resistance of Ti6Al7Nb alloy.

引用

页码：93 / 103

页数：11

共 37 条

[1]

[Anonymous], 2006, ELECTROCHIM ACTA, DOI [DOI 10.1016/j.electacta.2005.02.121, DOI 10.1016/J.ELECTACTA.2005.02.121]

[2] Corrosion behavior of titanium in the presence of calcium phosphate and serum proteins [J].