Partner: R. Horst Meißner


Recent publications
1.Zeller-Plumhoff B., Gile M., Priebe M., Słomińska H., Boll B., Wiese B., Würger T., Willumeit-Römer R., Horst Meißner R., Exploring key ionic interactions for magnesium degradation in simulated body fluid – a data-driven approach, Corrosion Science, ISSN: 0010-938X, DOI: 10.1016/j.corsci.2021.109272, Vol.182, pp.1-109272-13, 2021
Abstract:

We have studied the degradation of pure magnesium wire in simulated body fluid and its subsets under physiological conditions to enable the prediction of the degradation rate based on the medium's ionic composition. To this end, micro-computed tomography and scanning electron microscopy with energy-dispersive X-ray spectroscopy were used, followed by a tree regression analysis. A non-linear relationship was found between degradation rate and the precipitation of calcium salts. The mean absolute error for predicting the degradation rate was 1.35 mm/yr. This comparatively high value indicates that ionic interactions were exceedingly complex or that an unknown parameter determining the degradation may exist.

Keywords:

magnesium degradation, simulated body fluid, MicroCT, tree regression

Affiliations:
Zeller-Plumhoff B.-other affiliation
Gile M.-other affiliation
Priebe M.-other affiliation
Słomińska H.-IPPT PAN
Boll B.-other affiliation
Wiese B.-other affiliation
Würger T.-other affiliation
Willumeit-Römer R.-other affiliation
Horst Meißner R.-other affiliation