Microstructures and corrosion behavior of biodegradable Mg-6Gd-xZn-0.4Zr alloys with and without long period stacking ordered structure

被引：71
作者：
Zhang, Xiaobo [1 ,2 ]
Ba, Zhixin [1 ,2 ]
Wang, Zhangzhong [1 ,2 ]
Xue, Yajun [1 ,2 ]
机构：
[1] Nanjing Inst Technol, Sch Mat Sci & Engn, Nanjing 211167, Jiangsu, Peoples R China
[2] Jiangsu Key Lab Adv Struct Mat & Applicat Technol, Nanjing 211167, Jiangsu, Peoples R China
来源：
CORROSION SCIENCE | 2016年 / 105卷
基金：
中国国家自然科学基金;
关键词：
Magnesium; Zinc; SEM; Weight loss; GD-ZN ALLOYS; MAGNESIUM ALLOY; MECHANICAL-PROPERTIES; IN-VITRO; BIOCORROSION BEHAVIOR; DEGRADATION BEHAVIOR; CALCIUM-PHOSPHATE; AS-CAST; MG; IMPLANTS;
D O I：
10.1016/j.corsci.2016.01.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructures and corrosion behavior of Mg-6Gd-xZn-0.4Zr (x = 0.5, 1, -and 2 wt%) alloys under as-cast and solution treated conditions were studied. Long period stacking ordered (LPSO) structure formed in the as-cast alloys and disappeared after solution treatment. The distribution of LPSO structure is related to Zn concentration. The corrosion rates of the as-cast and solution treated alloys increased with increasing Zn content. The as-cast alloys, which had LPSO structure located at the outer edges of grains, exhibited better corrosion resistance and a more uniform corrosion mode as compared to the alloy which had LPSO structure distributed throughout some whole grains. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：68 / 77
页数：10
相关论文
共 41 条
[1]  
[Anonymous], 2004, G3172 ASTM INT
[2]   Role of alloyed Nd in the microstructure and atmospheric corrosion of as-cast magnesium alloy AZ91 [J].
Arrabal, R. ;
Mingo, B. ;
Pardo, A. ;
Matykina, E. ;
Mohedano, M. ;
Merino, M. C. ;
Rivas, A. ;
Maroto, A. .
CORROSION SCIENCE, 2015, 97 :38-48
[3]   Effects of Zn on microstructure, mechanical properties and corrosion behavior of Mg-Zn alloys [J].
Cai, Shuhua ;
Lei, Ting ;
Li, Nianfeng ;
Feng, Fangfang .
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2012, 32 (08) :2570-2577
[4]   Improvement of corrosion resistance of magnesium alloys for biomedical applications [J].
Chen, Kai ;
Dai, Jianwei ;
Zhang, Xiaobo .
CORROSION REVIEWS, 2015, 33 (3-4) :101-117
[5]   To improve corrosion resistance and hemocompatibility of magnesium alloy via cathodic plasma electrolytic deposition combined with surface thiol-ene photopolymerization [J].
Chen, Yashao ;
Qian, Huaming ;
Wang, Xudong ;
Liu, Peng ;
Yan, Guangjun ;
Huang, Linlin ;
Yi, Jinhong .
MATERIALS LETTERS, 2015, 158 :178-181
[6]   Recent advances on the development of magnesium alloys for biodegradable implants [J].
Chen, Yongjun ;
Xu, Zhigang ;
Smith, Christopher ;
Sankar, Jag .
ACTA BIOMATERIALIA, 2014, 10 (11) :4561-4573
[7]   Susceptibility of rare-earth-magnesium alloys to micro-galvanic corrosion [J].
Coy, A. E. ;
Viejo, F. ;
Skeldon, P. ;
Thompson, G. E. .
CORROSION SCIENCE, 2010, 52 (12) :3896-3906
[8]   Formation of 14H-type long period stacking ordered structure in the as-cast and solid solution treated Mg-Gd-Zn-Zr alloys [J].
Ding, W. J. ;
Wu, Y. J. ;
Peng, L. M. ;
Zeng, X. Q. ;
Yuan, G. Y. ;
Lin, D. L. .
JOURNAL OF MATERIALS RESEARCH, 2009, 24 (05) :1842-1854
[9]   In vivo degradation performance of micro-arc-oxidized magnesium implants: A micro-CT study in rats [J].
Fischerauer, S. F. ;
Kraus, T. ;
Wu, X. ;
Tangl, S. ;
Sorantin, E. ;
Haenzi, A. C. ;
Loeffler, J. F. ;
Uggowitzer, P. J. ;
Weinberg, A. M. .
ACTA BIOMATERIALIA, 2013, 9 (02) :5411-5420
[10]   Phase equilibria and transformations in ternary Mg-Gd-Zn alloys [J].
Groebner, Joachim ;
Kozlov, Artem ;
Fang, Xi-Ya ;
Zhu, Suming ;
Nie, Jian-Feng ;
Gibson, Mark A. ;
Schmid-Fetzer, Rainer .
ACTA MATERIALIA, 2015, 90 :400-416
12345