Microstructural characterization and mechanical properties of Mg-Zr-Ca alloys prepared by hot-extrusion for biomedical applications
Data(s) |
01/08/2011
|
---|---|
Resumo |
This paper investigated the microstructural characterization and mechanical properties of Mg-Zr-Ca alloys prepared by hot-extrusion for potential use in biomedical applications. Mg-Zr-Ca alloys were fabricated by commercial pure Mg (99.9%), Ca (99.9%), and master Mg-33% Zr alloy (mass%). The microstructural characterization of the hot-extruded Mg-Zr-Ca alloys was examined by X-ray diffraction analysis and optical microscopy, and the mechanical properties were determined from tensile tests. The experimental results indicate that the hot-extruded Mg-Zr-Ca alloys with 1 mass% Ca are composed of one single phase and those alloys with 2 mass% Ca consist of both Mg2Ca and α phase. The hot-extruded Mg-Zr-Ca alloys exhibit equiaxed granular microstructures and the hot-extrusion process can effectively increase both the tensile strength and ductility of Mg-Zr-Ca alloys. The hot-extruded Mg-1Zr-1Ca alloy (mass%) exhibits the highest strength and best ductility among all the alloys, and has much higher strength than the human bone, suggesting that it has a great potential to be a good candidate for biomedical application. |
Identificador | |
Idioma(s) |
eng |
Publicador |
American Scientific Publishers |
Relação |
http://dro.deakin.edu.au/eserv/DU:30044090/li-microstructuralcharacterization-2011.pdf http://hdl.handle.net/10.1166/asl.2011.1741 |
Direitos |
2011, American Scientific Publishers |
Palavras-Chave | #hot-extrusion #Mg-Zr-Ca alloy #microstructure #mechanical property #biomaterial |
Tipo |
Journal Article |