In vitro corrosion of magnesium alloy AZ31 - a synergetic influence of glucose and Tris

Li, L, Liu, B, Zeng, R, Li, S, Zhang, F, Zou, Y, Jiang, H, Chen, X, Guan, S and Liu, Q 2018, 'In vitro corrosion of magnesium alloy AZ31 - a synergetic influence of glucose and Tris', Frontiers of Materials Science, vol. 12, no. 2, pp. 184-197.


Document type: Journal Article
Collection: Journal Articles

Title In vitro corrosion of magnesium alloy AZ31 - a synergetic influence of glucose and Tris
Author(s) Li, L
Liu, B
Zeng, R
Li, S
Zhang, F
Zou, Y
Jiang, H
Chen, X
Guan, S
Liu, Q
Year 2018
Journal name Frontiers of Materials Science
Volume number 12
Issue number 2
Start page 184
End page 197
Total pages 14
Publisher Higher Education Press
Abstract Biodegradable Mg alloys have generated great interest for biomedical applications. Accurate predictions of in vivo degradation of Mg alloys through cost-effective in vivo evaluations require the latter to be conducted in an environment close to that of physiological scenarios. However, the roles of glucose and buffering agents in regulating the in vivo degradation performance of Mg alloys has not been elucidated. Herein, degradation behavior of AZ31 alloy is investigated by hydrogen evolution measurements, pH monitoring and electrochemical tests. Results indicate that glucose plays a content-dependent role in degradation of AZ31 alloy in buffer-free saline solution. The presence of a low concentration of glucose, i.e. 1.0 g/L, decreases the corrosion rate of Mg alloy AZ31, whereas the presence of 2.0 and 3.0 g/L glucose accelerates the corrosion rate during long term immersion in saline solution. In terms of Tris-buffered saline solution, the addition of glucose increases pH value and promotes pitting corrosion or general corrosion of AZ31 alloy. This study provides a novel perspective to understand the bio-corrosion of Mg alloys in buffering agents and glucose containing solutions.
Subject Functional Materials
Metals and Alloy Materials
Keyword(s) biomaterials
corrosion
glucose
magnesium alloys
Tris
DOI - identifier 10.1007/s11706-018-0424-1
Copyright notice © Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018
ISSN 2095-025X
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