Abstract
We report on methodologies for use in the design of a biodegradable Mg alloy appropriate for load-bearing but temporary orthopedic implant applications. Comparative studies of Mg-5Ca and Mg-5Ca-1Zn were conducted to explore the effects of a combination of minor alloying and hot extrusion, on the alloy's mechanical properties and corrosion resistance. The extruded Mg-5Ca-1Zn exhibited high ultimate compressive strength of 385 MPa and suffered no significant structural degradation even after immersion in simulated body fluid for 30 days. Mg-5Ca-1Zn alloy showed the mechanical strength and controlled corrosion rate to be considered as an ideal candidate for biodegradable orthopedic implant material.
Original language | English |
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Pages (from-to) | 807-815 |
Number of pages | 9 |
Journal | Journal of Biomedical Materials Research - Part B Applied Biomaterials |
Volume | 103 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2015 May 1 |
Keywords
- biodegradation
- magnesium
- mechanical properties
- SEM
- zinc
ASJC Scopus subject areas
- Biomedical Engineering
- Biomaterials