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Publisher DOI: 10.1016/j.corsci.2021.109272
Title: Exploring key ionic interactions for magnesium degradation in simulated body fluid – a data-driven approach
Language: English
Authors: Zeller-Plumhoff, Berit 
Gile, Melissa 
Priebe, Melissa 
Slominska, Hanna 
Boll, Benjamin  
Wiese, Björn 
Würger, Tim  
Willumeit-Römer, Regine 
Meißner, Robert  
Keywords: Magnesium degradation; MicroCT; Simulated body fluid; Tree regression
Issue Date: 22-Jan-2021
Publisher: Elsevier Science
Source: Corrosion Science 182: 109272 (2021-04-15)
Abstract (english): 
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.
DOI: 10.15480/882.3486
ISSN: 0010-938X
Journal: Corrosion science 
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Document Type: Article
Project: I³-Lab - Strukturelle Integrität durch Vibroakustische Modulation zur Verlängerung der Lebensdauer ziviler Infrastruktur 
Promoting patient safety by a novel combination of imaging technologies for biodegradable magnesium implants 
More Funding information: This research was supported in part through the Maxwell computational resources operated at Deutsches Elektronen-Synchrotron DESY , Hamburg, Germany.
Peer Reviewed: Yes
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
References: 10.15480/336.2862
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