Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications

IMR OpenIR

	Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications
	Shi, Ling-ling; Huang, Yuanding; Yang, Lei; Feyerabend, Frank; Mendis, Chamini; Willumeit, Regine; Kainer, Karl Ulrich; Hort, Norbert; llshi@imr.ac.cn
	2015
发表期刊	JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
ISSN	1751-6161
卷号	47 页码:38-48
摘要	Magnesium alloys are promising candidates for biomedical applications. In this work, influences of composition and heat treatment on the microstructure, the mechanical properties and the corrosion behavior of Mg-Gd-Ca-Zr alloys as potential biomedical implant candidates were investigated. Mg5Gd phase was observed at the grain boundaries of Mg-10Gd-xCa-0.5Zr (x=0, 0.3, 1.2 wt%) alloys. Increase in the Ca content led to the formation of additional Mg2Ca phase. The Ca additions increased both the compressive and the tensile yield strengths, but reduced the ductility and the corrosion resistance in cell culture medium. After solution heat treatment, the Mg5Gd particles dissolved in the Mg matrix. The compressive strength decreased, while the corrosion resistance improved in the solution treated alloys. After ageing at 200 degrees C, metastable beta' phase formed on prismatic planes and a new type of basal precipitates have been observed, which improved the compressive and tensile ultimate strength, but decreased the ductility. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[shi, ling-ling] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [huang, yuanding ; yang, lei ; feyerabend, frank ; mendis, chamini ; willumeit, regine ; kainer, karl ulrich ; hort, norbert] helmholtz zentrum geesthacht, inst mat res, d-21502 geesthacht, germany
关键词	Magnesium Gadolinium Mechanical Properties Corrosion Behavior Biomedical Applications
资助者	China Scholarship Council; Chinese Academy of Sciences; National Natural Science Foundation of China [51171180, 51001099]
收录类别	sci
语种	英语
WOS记录号	WOS:000355887800005
引用统计	被引频次：45[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/321006/74959
专题	中国科学院金属研究所
通讯作者	llshi@imr.ac.cn
推荐引用方式 GB/T 7714	Shi, Ling-ling,Huang, Yuanding,Yang, Lei,et al. Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2015,47:38-48.
APA	Shi, Ling-ling.,Huang, Yuanding.,Yang, Lei.,Feyerabend, Frank.,Mendis, Chamini.,...&llshi@imr.ac.cn.(2015).Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,47,38-48.
MLA	Shi, Ling-ling,et al."Mechanical properties and corrosion behavior of Mg-Gd-Ca-Zr alloys for medical applications".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 47(2015):38-48.