Corrosion of high purity Mg, Mg2Zn0.2Mn, ZE41 and AZ91 in Hank's solution at 37 °C

被引:177
作者
Abidin, Nor Ishida Zainal [1 ,2 ]
Atrens, Aleks D. [3 ]
Martin, Darren [1 ]
Atrens, Andrej [1 ]
机构
[1] Univ Queensland, Div Mat, St Lucia, Qld 4072, Australia
[2] Univ Malaya, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia
[3] Univ Queensland, Queensland Geothermal Energy Ctr Excellence, Brisbane, Qld 4072, Australia
关键词
Magnesium; SEM; IN-VIVO CORROSION; ACID-BASE-BALANCE; RARE-EARTH ALLOY; Y-RE ALLOY; PURE MAGNESIUM; BIODEGRADABLE MATERIALS; VITRO DEGRADATION; CARBON-DIOXIDE; BEHAVIOR; MICROSTRUCTURE;
D O I
10.1016/j.corsci.2011.06.030
中图分类号
T [工业技术];
学科分类号
120111 [工业工程];
摘要
The CO2 partial pressure required to maintain a synthetic body fluid (SBF) at a constant pH, based on the initial bicarbonate concentration, was evaluated to be 0.013 atm for Hank's solution and 0.083 atm for SBF27. Corrosion of high purity Mg and three Mg alloys in Hank's solution was studied using hydrogen evolution, weight loss and Tafel extrapolation. The solution pH was maintained constant by CO2. There was initially an incubation period with a low corrosion rate, a period of increasing corrosion rate, and subsequently steady state corrosion. Some hydrogen dissolved in the Mg metal. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3542 / 3556
页数:15
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