Silane/TiO2 coating to control the corrosion rate of magnesium alloys in simulated body fluid

被引：88

作者：

Cordoba, L. C. ^{[1
,2
]}

Montemor, M. F. ^{[1
]}

Coradin, T. ^{[2
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, CQE, Ave Rovisco Pais, P-1049001 Lisbon, Portugal

[2] Univ Paris 06, Sorbonne Univ, Coll France, CNRS,Lab Chim Mat Condensee Paris, 11 Pl Marcelin Berthelot, F-75005 Paris, France

来源：

CORROSION SCIENCE | 2016年 / 104卷

关键词：

Magnesium; Alloy; EIS; Polymeric coatings; Alkaline corrosion; MG ALLOY; BEHAVIOR; AZ31; PHOSPHATE; IMPLANTS; SULFATE;

D O I：

10.1016/j.corsci.2015.12.006

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

A silane-based coating modified with titanium IV iso-propoxide was developed to slow down the corrosion rate of AZ31 and ZE41 magnesium alloys intended as biodegradable implants materials. Electrochemical impedance spectroscopy (EIS) was used to monitor the corrosion evolution over 7 weeks in simulated body fluid at 37 degrees C. A homogeneous crack-free 3 mu m-thick coating provided corrosion protection for 2 and 3 weeks to the ZE41 and the AZ31, respectively. The corrosion mechanisms and the nature of the corrosion products of the coated systems are discussed and correlated to the coating morphology before and after the immersion tests. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：152 / 161

页数：10

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