Local misorientation accelerates corrosion in biodegradable Mg.

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ID: 64599
2019
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Abstract
Mg-based implants are used in biomedical applications predominantly because of their degradable property. In this paper, the effect of local misorientations (intragranular misorientation) on the corrosion behavior of high-purity Mg (HPM) was systematically investigated according to microstructure characterization and corrosion measurements. The results showed that local misorientation introduced into grains by deformation could result in corrosion around the grain boundary (GB), which ultimately reduces the corrosion resistance of HPM. After removing the local misorientation by annealing, the corrosion around GB could be eliminated. This work is expected to inspire better control over the degradation behaviors of biomedical Mg through microstructure design to be used for various biomedical applications.
Reference Key
wang2019localacta Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wang, Wenhui;Wu, Hongliu;Sun, Yu;Yan, Jun;Zhang, Lei;Zhang, Shaoxiang;Ni, Jiahua;Song, Yang;Zhang, Xiaonong;
Journal Acta biomaterialia
Year 2019
DOI
S1742-7061(19)30715-9
URL
Keywords
microstructure corrosion mg grain boundary (gb) local misorientation

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