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The Effect of Surface Treatments on the Degradation of Biomedical Mg Alloys—A Review Paper

1
Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, 21502 Geesthacht, Germany
2
School of Computer Science, McGill University, 845 Sherbrooke Street West, Montréal, QC H3A 2T5, Canada
*
Author to whom correspondence should be addressed.
Materials 2018, 11(12), 2561; https://doi.org/10.3390/ma11122561
Received: 19 November 2018 / Revised: 12 December 2018 / Accepted: 14 December 2018 / Published: 16 December 2018
(This article belongs to the Special Issue Absorbable Metals for Biomedical Applications)
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Abstract

This report reviews the effects of chemical, physical, and mechanical surface treatments on the degradation behavior of Mg alloys via their influence on the roughness and surface morphology. Many studies have been focused on technically-used AZ alloys and a few investigations regarding the surface treatment of biodegradable and Al-free Mg alloys, especially under physiological conditions. These treatments tailor the surface roughness, homogenize the morphology, and decrease the degradation rate of the alloys. Conversely, there have also been reports which showed that rough surfaces lead to less pitting and good cell adherence. Besides roughness, there are many other parameters which are much more important than roughness when regarding the degradation behavior of an alloy. These studies, which indicate the relationship between surface treatments, roughness and degradation, require further elaboration, particularly for biomedical Mg alloy applications. View Full-Text
Keywords: surface treatments; roughness; Mg-alloys; degradation behavior surface treatments; roughness; Mg-alloys; degradation behavior
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gawlik, M.M.; Wiese, B.; Desharnais, V.; Ebel, T.; Willumeit-Römer, R. The Effect of Surface Treatments on the Degradation of Biomedical Mg Alloys—A Review Paper. Materials 2018, 11, 2561.

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