Effect of Y on the bio-corrosion behavior of extruded Mg-Zn-Mn alloy in Hank's solution

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	Effect of Y on the bio-corrosion behavior of extruded Mg-Zn-Mn alloy in Hank's solution
	W. W. He; E. L. Zhang; K. Yang
	2010
发表期刊	Materials Science & Engineering C-Materials for Biological Applications
ISSN	0928-4931
卷号	30 期号:1 页码:167-174
摘要	The bio-corrosion properties of Mg-Zn-Mn alloys with and without Y in Hank's solution at 37 degrees C were investigated by using electrochemical test and electrochemical impedance spectra (EIS). The results of open circuit potential (OCP) and polarization tests indicated that Y could reduce the cathodic current density. A passivative stage appeared in the Tafel curve of the Y containing magnesium alloy, indicating that a passivative film was formed on the surface of the Y containing magnesium alloy. EIS results showed that the Y containing alloy had higher charge transfer resistance and film resistance, but lower double layer capacity than the alloy without the Y element. The surface reaction product identification by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) showed that the surface corrosion products were hydroxide and phosphate (Mg(3)Ca(3)(PO(4))(4)) for Mg-Zn-Mn alloy and phosphate (MgNaPO(4)) for the Y containing Mg-Zn-Mn alloys. The XPS results also showed that a Y(2)O(3) protective film was formed on the surface of the Y containing magnesium alloy which contributed mainly to the low cathodic current density and the high resistance. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[he, weiwei; zhang, erlin; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china. [he, weiwei] chinese acad sci, grad univ, beijing 100049, peoples r china.;zhang, el (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;erlin.zhang@imr.ac.cn
关键词	Magnesium Alloy Corrosion Properties y(2)o(3) Electrochemical Impedance Spectra Biomedical Materials Quasi-crystalline Particles In-vivo Corrosion Magnesium Alloys Mechanical-properties Microstructure Phase
URL	查看原文
WOS记录号	WOS:000273383500024
引用统计	被引频次：110[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31145
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. W. He,E. L. Zhang,K. Yang. Effect of Y on the bio-corrosion behavior of extruded Mg-Zn-Mn alloy in Hank's solution[J]. Materials Science & Engineering C-Materials for Biological Applications,2010,30(1):167-174.
APA	W. W. He,E. L. Zhang,&K. Yang.(2010).Effect of Y on the bio-corrosion behavior of extruded Mg-Zn-Mn alloy in Hank's solution.Materials Science & Engineering C-Materials for Biological Applications,30(1),167-174.
MLA	W. W. He,et al."Effect of Y on the bio-corrosion behavior of extruded Mg-Zn-Mn alloy in Hank's solution".Materials Science & Engineering C-Materials for Biological Applications 30.1(2010):167-174.