Microstructure and corrosion properties of Mg-Zn-Ca-Nd alloy for biomedical application

被引：2
作者：
Jiang Dongmei [1 ]
Cao Zhanyi [1 ]
Guo Liang [1 ]
Sun Xu [1 ]
Zhang Jinling [1 ]
机构：
[1] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Changchun 130025, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS III, PTS 1-3 | 2013年 / 750-752卷
关键词：
Mg-Zn-Ca-Nd alloy; Neodymium (Nd); Microstructure; corrosion properties; MECHANICAL-PROPERTIES; SOLID-SOLUTION; BEHAVIORS;
D O I：
10.4028/www.scientific.net/AMR.750-752.756
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructure and corrosion properties of the as-cast Mg-Zn-Ca-Nd alloys were investigated in this study. The results showed that the alloy was mainly composed of alpha-Mg solid solution and the secondary phases of MgZn, Ca2Mg6Zn3 and Mg41Nd5. The portion of precipitated phases was increased with the increment of Nd content. Both electrochemical measurement and immersion test indicated that Mg-4Zn-0.5Ca-1.0Nd had the best corrosion resistance in SBF solution. This is attributed to a combination of (1) the uniform microstructure of alloy, and (2) a lower volume fraction of second phases. In the Mg-4Zn-0.5Ca-3.0Nd alloy, the corrosion rate might slow down due to finer dendrite cells were surrounded by the more continuous second phases along the grain boundary and in the alpha-Mg matrix.
引用
收藏
页码：756 / 759
页数：4
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  • [1] Relationship between the corrosion behavior and the thermal characteristics and microstructure of Mg-0.5Ca-xZn alloys
    Bakhsheshi-Rad, H. R.
    Abdul-Kadir, M. R.
    Idris, M. H.
    Farahany, S.
    [J]. CORROSION SCIENCE, 2012, 64 : 184 - 197
  • [2] Homogeneous corrosion of high pressure torsion treated Mg-Zn-Ca alloy in simulated body fluid
    Gao, J. H.
    Guan, S. K.
    Ren, Z. W.
    Sun, Y. F.
    Zhu, S. J.
    Wang, B.
    [J]. MATERIALS LETTERS, 2011, 65 (04) : 691 - 693
  • [3] Thermodynamic description on the miscibility gap of the Mg-based solid solution in the Mg-Zn, Mg-Nd and Mg-Zn-Nd systems
    Niu, Chunju
    Liu, Miao
    Li, Changrong
    Du, Zhenmin
    Guo, Cuiping
    [J]. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2010, 34 (04): : 428 - 433
  • [4] Microstructure analysis and corrosion behavior of biodegradable Mg-Ca implant alloys
    Rad, Hamid Reza Bakhsheshi
    Idris, Mohd Hasbullah
    Kadir, Mohammed Rafiq Abdul
    Farahany, Saeed
    [J]. MATERIALS & DESIGN, 2012, 33 : 88 - 97
  • [5] Influence of microstructure on the corrosion of diecast AZ91D
    Song, GL
    Atrens, A
    Dargusch, M
    [J]. CORROSION SCIENCE, 1999, 41 (02) : 249 - 273
  • [6] Control of biodegradation of biocompatable magnesium alloys
    Song, Guangling
    [J]. CORROSION SCIENCE, 2007, 49 (04) : 1696 - 1701
  • [7] Preparation and characterization of a new biomedical Mg-Zn-Ca alloy
    Sun, Yu
    Zhang, Baoping
    Wang, Yin
    Geng, Lin
    Jiao, Xiaohui
    [J]. MATERIALS & DESIGN, 2012, 34 : 58 - 64
  • [8] Effects of Ce on microstructure and corrosion resistance of Mg-9Gd-4Y-1Nd-0.6Zr alloy
    Yi, Jianlong
    Zhang, Xinming
    [J]. 2011 CHINESE MATERIALS CONFERENCE, 2012, 27 : 815 - 822
  • [9] Microstructure, mechanical properties and bio-corrosion properties of Mg-Zn-Mn-Ca alloy for biomedical application
    Zhang, Erlin
    Yang, Lei
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 497 (1-2): : 111 - 118
  • [10] In vitro degradation, hemolysis and MC3T3-E1 cell adhesion of biodegradable Mg-Zn alloy
    Zhang, Shaoxiang
    Li, Jianan
    Song, Yang
    Zhao, Changli
    Zhang, Xiaonong
    Xie, Chaoying
    Zhang, Yan
    Tao, Hairong
    He, Yaohua
    Jiang, Yao
    Bian, Yujun
    [J]. MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2009, 29 (06): : 1907 - 1912
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