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Effect of minor content of Gd on the mechanical and degradable properties of as-cast Mg-2Zn-xGd-0.5Zr alloys
Chen, Junxiu; Tan, Lili; Yu, Xiaoming; Yang, Ke
2019-04-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume35Issue:4Pages:503-511
AbstractRE-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.
KeywordMg-2Zn-0.5Zr-Gd alloy Microstructure Mechanical properties Biodegradation
Indexed BySCI
Language英语
WOS IDWOS:000455967200006
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81244
Collection中国科学院金属研究所
Recommended Citation
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.
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