Paper Title:
Magnesium and Magnesium Alloys as Degradable Metallic Biomaterials
  Abstract

Drawbacks associated with permanent metallic implants lead to the search for degradable metallic biomaterials. Magnesium alloys have been highly considered as Mg has a high biocorrosion potential and is essential to bodies. In this study, corrosion behaviour of pure magnesium and magnesium alloy AZ31 in both static and dynamic physiological conditions (Hank’s solution) has been investigated. It is found that the materials degrade fast at beginning, then stabilize after 5 days of immersion. High purity in the materials reduces the corrosion rate while the dynamic condition accelerates the degradation process. In order to slow down the degradation process to meet the requirement for their bio-applications, an anodized coating is applied and is proved as effective in controlling the biodegradation rate.

  Info
Periodical
Edited by
John Bell, Cheng Yan, Lin Ye and Liangchi Zhang
Pages
207-210
DOI
10.4028/www.scientific.net/AMR.32.207
Citation
H. Wang, Z. M. Shi, K. Yang, "Magnesium and Magnesium Alloys as Degradable Metallic Biomaterials ", Advanced Materials Research, Vol 32, pp. 207-210, Feb. 2008
Online since
February 2008
Price
US$ 28,-
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