The influence of pH on the corrosion rate of high-purity Mg, AZ91 and ZE41 in bicarbonate buffered Hanks' solution

被引：126
作者：
Johnston, Sean [1 ]
Shi, Zhiming [1 ,2 ]
Atrens, Andrej [1 ]
机构：
[1] Univ Queensland, Sch Mech & Min Engn, Mat Engn, Brisbane, Qld 4072, Australia
[2] Univ Queensland, Ctr Adv Mat Proc & Mfg AMPAM, Brisbane, Qld 4072, Australia
来源：
CORROSION SCIENCE | 2015年 / 101卷
关键词：
Magnesium; Weight loss; SEM; IN-VIVO CORROSION; BIODEGRADABLE MAGNESIUM IMPLANTS; PLASMA ION-IMPLANTATION; ARC-OXIDIZED MAGNESIUM; BODY-FLUID SOLUTION; PURE MAGNESIUM; DEGRADATION BEHAVIOR; Y-RE; VITRO CORROSION; ALLOY;
D O I：
10.1016/j.corsci.2015.09.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion of high purity (HP) Mg, AZ91 and ZE41, was studied in CO2-bicarbonate buffered Hanks' solution, using mass loss and hydrogen evolution. Corrosion rates were in the following decreasing order: ZE41 > HP Mg > AZ91. Corrosion rates of ZE41 were much higher than those of the other Mg alloys. HP Mg and AZ91 had comparable corrosion rates, but HP Mg corroded more quickly. All corrosion rates decreased slightly with increasing pH, attributed to more stable protective films. A slow fluid flow caused a slightly higher corrosion rate and a more-uniform corrosion morphology for all Mg alloys. (C) 2015 Elsevier Ltd. All rights reserved.
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收藏
页码：182 / 192
页数：11
相关论文
共 87 条
[1]  
Abidin N. I. Z., CORROS SCI, V53
[2]   Evaluation of Coatings for Mg Alloys for Biomedical Applications [J].
Abidin, Nor Ishida Zainal ;
Da Forno, Anna ;
Bestetti, Massimiliano ;
Martin, Darren ;
Beer, Aiden ;
Atrens, Andrej .
ADVANCED ENGINEERING MATERIALS, 2015, 17 (01) :58-67
[3]   The in vivo and in vitro corrosion of high-purity magnesium and magnesium alloys WZ21 and AZ91 [J].
Abidin, Nor Ishida Zainal ;
Rolfe, Barbara ;
Owen, Helen ;
Malisano, Julian ;
Martin, Darren ;
Hofstetter, Joelle ;
Uggowitzer, Peter J. ;
Atrens, Andrej .
CORROSION SCIENCE, 2013, 75 :354-366
[4]  
Alberti K G, 1982, Ciba Found Symp, V87, P1, DOI 10.1002/9780470720691.ch1
[5]   An investigation of the corrosion mechanisms of WE43 Mg alloy in a modified simulated body fluid solution: The effect of electrolyte renewal [J].
Ascencio, M. ;
Pekguleryuz, M. ;
Omanovic, S. .
CORROSION SCIENCE, 2015, 91 :297-310
[6]   An investigation of the corrosion mechanisms of WE43 Mg alloy in a modified simulated body fluid solution: The influence of immersion time [J].
Ascencio, M. ;
Pekguleryuz, M. ;
Omanovic, S. .
CORROSION SCIENCE, 2014, 87 :489-503
[7]   Possible dissolution pathways participating in the Mg corrosion reaction [J].
Atrens, Aleks D. ;
Gentle, Ian ;
Atrens, Andrej .
CORROSION SCIENCE, 2015, 92 :173-181
[8]   Review of Recent Developments in the Field of Magnesium Corrosion [J].
Atrens, Andrej ;
Song, Guang-Ling ;
Liu, Ming ;
Shi, Zhiming ;
Cao, Fuyong ;
Dargusch, Matthew S. .
ADVANCED ENGINEERING MATERIALS, 2015, 17 (04) :400-453
[9]   Advances in Mg corrosion and research suggestions [J].
Atrens, Andrej ;
Song, Guang-Ling ;
Cao, Fuyong ;
Shi, Zhiming ;
Bowen, Patrick K. .
JOURNAL OF MAGNESIUM AND ALLOYS, 2013, 1 (03) :177-200
[10]   Corrosion mechanism applicable to biodegradable magnesium implants [J].
Atrens, Andrej ;
Liu, Ming ;
Abidin, Nor Ishida Zainal .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2011, 176 (20) :1609-1636
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