Microstructure, Mechanical and Degradation Properties of Extruded Pure Mg for Biomedical Application

Zhi Li; Jiong Zhao

doi:10.4028/www.scientific.net/AMR.557-559.1231

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 557-559Microstructure, Mechanical and Degradation...

Microstructure, Mechanical and Degradation Properties of Extruded Pure Mg for Biomedical Application

Abstract:

Magnesium is potential biodegradable implant materials due to its attractive biological property, degradability and possesses mechanical properties similar to bone. But cast magnesium has an unsatisfactory mechanical property. Microstructure, mechanical properties, and degradation properties of the extruded pure Mg have been investigated by use of optical microscope, tensile testing, and Hank's solution that simulates bodily fluids. Microstructure observation has shown that the extrusion significantly refined the grain size of the cast magnesium, which mainly contributes to the high tensile strength and good elongation. The degradation rate is shown to be significantly reduced by grain refinement produced by extrusion. The results of the present study showed that pure magnesium by extrusion treatment is a simple and promising way of enhancing the mechanical properties and corrosion resistance of pure Mg in Hanks' solution.

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Periodical:

Advanced Materials Research (Volumes 557-559)

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1231-1234

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.557-559.1231

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Online since:

July 2012

Authors:

Zhi Li, Jiong Zhao

Keywords:

Corrosion, Grain Refinements, Mechanical Property, Microstructure, Pure Magnesium

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