The application of magnesium and its alloy as degradable biomaterials is mainly confined due to its
high degradation rate in physiological environment. This research focused on the effects of micro-arc oxidation
(MAO) on biodegradable behavior of Mg-Y-Zn magnesium alloy in a simulated body fluid (SBF). The corrosion
rate of alloys was gauged by means of hydrogen evolution volume measurement and mass-loss method. Scanning
electron microscope (SEM) was utilized to observe the surface of the magnesium alloy and the cross-section of
oxidation coating layer before and after corrosion. The Mg-Y-Zn alloy with thicker oxidation coating exhibited
greater corrosion resistance during the immersion test for 240 h.
LU Tian-feng (卢天凤), YIN Kai-yang (尹恺阳), SUN Bing-yi (孙秉毅),DONG Qing (董晴), CHEN Bin* (陈彬)
. Effects of Micro-arc Oxidation Coating on Corrosion Behavior of Mg-Y-Zn in Simulated Body Fluid[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(6)
: 668
-672
.
DOI: 10.1007/s12204-012-1343-4
[1] Miao Bo, Jiang De-zhi. Bone inductivity and antibacterial property of MAO-treated magnesium alloys [J].Heilongjiang Medicine and Pharmacy, 2009, 32(5): 7-8 (in Chinese).
[2] Wang Hai-tao. A study of the biocompatibility of the bio-magnesium alloys [D]. Zhengzhou: The First Affiliated Hospital of Zhengzhou University, 2010: 13-15(in Chinese).
[3] Witte F, Fischer J, Nellesen J, et al. In vitro and in vivo corrosion measurements of magnesium alloys[J]. Biomaterials, 2006, 27: 1013-1018.
[4] Kannan M B, Raman R K S. In vitro degradation and mechanical integrity of calcium-containing magnesium alloy in modified-simulated body fluid [J]. Biomaterials,2008, 29: 2306-2314.
[5] Zong Y, Yuan G Y, Zhang X B, et al. Comparison of biodegradable behaviors of AZ31 and Mg-Nd-Zn-Zr alloys in Hank’s physiological solution [J]. Materials Science and Engineering B, 2012, 177: 395-401.
[6] Zhang X B, Yuan G Y, Niu J L, et al. Microstructure,mechanical properties, biocorrosion behavior,and cytotoxicity of as-extruded Mg-Nd-Zn-Zr alloy with different extrusion ratios [J]. Journal of the Mechanical Behavior of Biomedical Materials, 2012, 9:153-162.
[7] Yang Meng, Chen Min-fang, You Chen, et al. Effect of nano-hydroxyapatite on Mg-Zn-Zr alloy biological properties in vitro [J]. Acta Materiae Compositae Sinica, 2011, 28(1): 82-87 (in Chinese).
[8] Zhang Ya-jing, Zhang Dan, Xi Xiao-hui, et al. Study on biomimetic hydroxyapatite coating on surface of AZ31 alloy [J]. Journal of Northeastern University: Natural Science, 2011, 32(11): 1611-1614 (in Chinese).
[9] Chen B, Lin D L, Zeng X Q, et al. Effects of yttrium and zinc addition on the microstructure and mechanical properties of Mg-Y-Zn alloys [J]. Journal of Materials Science, 2010, 45(9): 2510-2517.
[10] Izumi S, Yamasaki M, Kawamura Y. Relation between corrosion behavior and microstructure of Mg-Zn-Y alloys prepared by rapid solidification at various cooling rates [J]. Corrosion Science, 2009, 51(12): 395-402.
[11] Youssef K M, Wang Y B, Liao X Z, et al. High hardness in a nanocrystalline Mg97Y2Zn1 alloy [J].Materials Science & Engineering A, 2011, 528: 7494-7499.
[12] Kokubo T, Takadama H. How useful is SBF in predicting in vivo bone bioactivity? [J]. Biomaterials,2006, 27: 2907-2915.
[13] Zhang Rong-fa, Shan Da-yong, Han En-hou, et al. Effects of current mode on properties of anodic coatings of magnesium alloys [J]. Rare Metal Materials and Engineering, 2006, 35(9): 1392-1395 (in Chinese).
[14] Zhang Rong-fa, Shan Da-yong, Chen Rong-shi, et al. Application of micro-arc oxidation in improving corrosion resistance of magnesium alloys [J]. Journal of Materials Engineering, 2007(6): 61-64 (in Chinese).
[15] Zong Yang, Niu Jia-lin, Mao Lin, et al. Improvement of corrosion performance in simulated body fluid solution of Mg-Nd-Zn-Zr alloy coated with hydroxyapatite by pulse electrodepositing [J]. Corrosion & Protection,2011, 32(6): 430-433 (in Chinese).
[16] Xin Y C, Liu C L, Zhang X M, et al. Corrosion behavior of biomedical AZ91 magnesium alloy in simulated body fluids [J]. Journal of Materials Research,2007, 22(7): 2004-2011.
