Effect of minor content of Gd on the mechanical and degradable properties of as-cast Mg-2Zn-xGd-0.5Zr alloys

doi:10.1016/j.jmst.2018.10.022

IMR OpenIR

	Effect of minor content of Gd on the mechanical and degradable properties of as-cast Mg-2Zn-xGd-0.5Zr alloys
	Chen, Junxiu 1,2; Tan, Lili 1; Yu, Xiaoming 1; Yang, Ke 1
通讯作者	Tan, Lili(lltan@imr.ac.cn)
	2019-04-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	35 期号:4 页码:503-511
摘要	RE-containing Mg alloys used as biodegradable medical implants exhibit good promising application due to their good mechanical properties and degradation resistance. In this work, effect of Gd on the microstructure, mechanical properties and biodegradation of as-cast Mg-2Zn-xGd-0.5Zr alloys was investigated. The results showed that there were mainly ia-Mg, I-phase, W-phase and MgZn2 phase in Mg-Zn-Gd-Zr alloys. With increase of the Gd content, the strength of the alloys was enhanced due to the second phase strengthening and grain refinement. The degradation resistance of Mg-2Zn-0.5Zr alloy was increased by adding 0.5%-1% Gd due to the uniformly distributed second phases which acted as a barrier to prevent the pitting corrosion. However, increasing Gd content to 2% reduced the degradation resistance of the alloy due to the galvanic corrosion between the matrix and the second phases. The good degradation resistance and mechanical properties of as-cast Mg-2Zn-1Gd-0.5Zr alloy makes it outstanding for biomaterial application. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Mg-2Zn-0.5Zr-Gd alloy Microstructure Mechanical properties Biodegradation
资助者	Key Program of China on Biomedical Materials Research and Tissue and Organ Replacement ; Institute of Metal Research, Chinese Academy of Sciences ; Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
DOI	10.1016/j.jmst.2018.10.022
收录类别	SCI
语种	英语
资助项目	Key Program of China on Biomedical Materials Research and Tissue and Organ Replacement[2016YFC1101804] ; Key Program of China on Biomedical Materials Research and Tissue and Organ Replacement[2016YFC1100604] ; Institute of Metal Research, Chinese Academy of Sciences[2015-ZD01] ; Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000455967200006
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：80[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/321006/131349
专题	中国科学院金属研究所
通讯作者	Tan, Lili
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Junxiu,Tan, Lili,Yu, Xiaoming,et al. Effect of minor content of Gd on the mechanical and degradable properties of as-cast Mg-2Zn-xGd-0.5Zr alloys[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(4):503-511.
APA	Chen, Junxiu,Tan, Lili,Yu, Xiaoming,&Yang, Ke.(2019).Effect of minor content of Gd on the mechanical and degradable properties of as-cast Mg-2Zn-xGd-0.5Zr alloys.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(4),503-511.
MLA	Chen, Junxiu,et al."Effect of minor content of Gd on the mechanical and degradable properties of as-cast Mg-2Zn-xGd-0.5Zr alloys".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.4(2019):503-511.