Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1555882 | Journal of Materials Science & Technology | 2015 | 7 Pages |
Abstract
A novel Mg-1.5Zn-0.6Zr-0.2Sc (denoted as ZK21-0.2Sc) alloy was developed as potential biodegradable implant materials. The microstructure, mechanical properties, and in vitro degradation behavior of the as-cast ZK21-0.2Sc alloy were investigated and compared with ZK21 alloy and pure Mg. The ZK21-0.2Sc alloy showed a single-phase structure with fine equiaxed grains. The alloy exhibited a good balance between strength and ductility. Both immersion tests and electrochemical tests showed that the ZK21-0.2Sc alloy had the lowest degradation rate in Hank's solution. The excellent degradation behavior of ZK21-0.2Sc alloy could be explained by the single-phase and fine grain structure, the more effective protection corrosion film, and the beneficial alloying effects of Zn, Zr and Sc.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Tao Li, Hailong Zhang, Yong He, Ning Wen, Xitao Wang,