Microstructural characterization and mechanical properties of Mg-Zr-Ca alloys prepared by hot-extrusion for biomedical applications

Zhou, Ying-Long, Luo, Dong-Mei, Hu, Wang-Yu, Li, Yuncang, Hodgson, Peter and Wen, Cuié 2011, Microstructural characterization and mechanical properties of Mg-Zr-Ca alloys prepared by hot-extrusion for biomedical applications, Advanced science letters, vol. 4, no. 8-10, pp. 2860-2863.

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Title Microstructural characterization and mechanical properties of Mg-Zr-Ca alloys prepared by hot-extrusion for biomedical applications
Author(s) Zhou, Ying-Long
Luo, Dong-Mei
Hu, Wang-Yu
Li, Yuncang
Hodgson, Peter
Wen, Cuié
Journal name Advanced science letters
Volume number 4
Issue number 8-10
Start page 2860
End page 2863
Total pages 4
Publisher American Scientific Publishers
Place of publication Valencia, Calif.
Publication date 2011-08
ISSN 1936-6612
1936-7317
Keyword(s) hot-extrusion
Mg-Zr-Ca alloy
microstructure
mechanical property
biomaterial
Summary 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.
Language eng
Field of Research 090301 Biomaterials
091207 Metals and Alloy Materials
090399 Biomedical Engineering not elsewhere classified
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, American Scientific Publishers
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044090

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