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Issue 14, 2014
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Effects of alloying elements on the corrosion behavior and biocompatibility of biodegradable magnesium alloys: a review

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Abstract

Magnesium (Mg) based alloys have been extensively considered for their use as biodegradable implant materials. However, controlling their corrosion rate in the physiological environment of the human body is still a significant challenge. One of the most effective approaches to address this challenge is to carefully select alloying compositions with enhanced corrosion resistance and mechanical properties when designing the Mg alloys. This paper comprehensively reviews research progress on the development of Mg alloys as biodegradable implant materials, highlighting the effects of alloying elements including aluminum (Al), calcium (Ca), lithium (Li), manganese (Mn), zinc (Zn), zirconium (Zr), strontium (Sr) and rare earth elements (REEs) on the corrosion resistance and biocompatibility of Mg alloys, from the viewpoint of the design and utilization of Mg biomaterials. The REEs covered in this review include cerium (Ce), erbium (Er), lanthanum (La), gadolinium (Gd), neodymium (Nd) and yttrium (Y). The effects of alloying elements on the microstructure, corrosion behavior and biocompatibility of Mg alloys have been critically summarized based on specific aspects of the physiological environment, namely the electrochemical effect and the biological behavior.

Graphical abstract: Effects of alloying elements on the corrosion behavior and biocompatibility of biodegradable magnesium alloys: a review

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Publication details

The article was received on 09 Dec 2013, accepted on 21 Jan 2014 and first published on 22 Jan 2014


Article type: Feature Article
DOI: 10.1039/C3TB21746A
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Citation: J. Mater. Chem. B, 2014,2, 1912-1933

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    Effects of alloying elements on the corrosion behavior and biocompatibility of biodegradable magnesium alloys: a review

    Y. Ding, C. Wen, P. Hodgson and Y. Li, J. Mater. Chem. B, 2014, 2, 1912
    DOI: 10.1039/C3TB21746A

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