Point defect model and corrosion of anodic oxide coatings on Ti-6Al-4V

被引：84

作者：

Narayanan, R. ^{[1
]}

Seshadri, S. K. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India

来源：

CORROSION SCIENCE | 2008年 / 50卷 / 06期

关键词：

Ti-6Al-4V; oxide; coating; model corrosion;

D O I：

10.1016/j.corsci.2008.02.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Elect rodeposited anodic oxide coatings were produced on Ti-6Al-4V substrates using (i) phosphoric acid and (ii) aqueous electrolyte containing dissolved calcium and phosphorus. Different coatings were produced by varying the time periods. The coatings contained lower oxides of titanium and small quantities of phosphorus and/or calcium deposited from the electrolyte. Coatings produced from shorter duration had higher resistance to corrosion by simulated body fluid. Point defect model is obeyed by all the coatings. As postulated by this model, coatings containing calcium are attacked more by simulated body fluid than coatings which do not contain calcium. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1521 / 1529

页数：9

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