Corrosion behavior of commercially pure Mg and ZM21 Mg alloy in Ringer's solution - Long term evaluation by EIS

被引：249

作者：

Jamesh, M. ^{[1
]}

Kumar, Satendra ^{[1
]}

Narayanan, T. S. N. Sankara ^{[1
]}

机构：

[1] Natl Met Lab, Madras Ctr, Madras 600113, Tamil Nadu, India

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 02期

关键词：

Alloy; Magnesium; EIS; IR spectroscopy; Anodic dissolution; MAGNESIUM ALLOYS; CALCIUM-CARBONATE; ELECTROCHEMICAL-BEHAVIOR; ZN ALLOY; TRIBOCORROSION BEHAVIOR; CORONARY STENTS; CA ALLOYS; CRYSTALLIZATION; PRECIPITATION; GROWTH;

D O I：

10.1016/j.corsci.2010.10.011

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Evaluation of the corrosion behavior of commercially pure magnesium (CP-Mg) and ZM21 Mg alloy immersed in Ringer's solution for 92 h by electrochemical impedance spectroscopy (EIS) is addressed. The formation of a compact layer of well-developed rod-like aragonitic CaCO3 crystals and its subsequent thickening with increase in immersion time offers a higher corrosion protective ability for ZM21 Mg alloy. The formation of a mud-crack pattern and a large number of clusters of needle-like crystals offers a relatively lower corrosion resistance for CP-Mg. The study suggests that ZM21 Mg alloy is a promising candidate material for the development of degradable implants. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：645 / 654

页数：10

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