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| Evolutions of Microclusters of Biodegradable Mg3Ca7 Potential Medical Implant Alloy |
| ZHOU Li-li1, 2, ZHOU Yan-hong1, PENG You-lin1, TIAN Ze-an2, LIU Rang-su2 |
1. Department of Information Engineering, Gannan Medical University, Jiangxi Province Ganzhou 341000, China;
2. School of Physics and Microelectronics Science, Hunan University, Hunan Province Changsha 410082, China |
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Abstract The molecular dynamics simulation calculation on the microclusters evolution properties of liquid Mg3Ca7 during the rapid solidifications has been performed. Results indicated that the icosahedron microcluster played key role in the glass transition which happened at about 600 K; it suggests that the formation and evolution mechanism of icosahedral order is important for the corrosion resistance of medical implant material of Mg- and Mg-Ca based alloys. It is also found that the icosahedron structure is unstable in the liquid and supercooled liquid until the glass transition occurs.
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Received: 15 July 2015
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Corresponding Authors:
ZHOU Li-li.
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