Localized accelerated degradation of magnesium: A new insight into the mechanism of its biomedical degradation

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

  • Yue Zhang
  • Kai Yan
  • Wen Xu
  • Cheng Wang
  • Kun Qian
  • Yi Shao
  • Genzhi Jiang
  • Huan Liu
  • Jia Ju
  • Daniel Höche
  • Chenglin Chu
  • Yuanding Huang
  • Regine Willumeit-Römer
  • Feng Xue
  • Norbert Hort
  • Jing Bai

Inhomogeneous degradation of Mg results in a potential safety risk for the application of its implants. The particular concern is the occurrence of localized accelerated degradation of Mg under the relatively enclosed condition. The present work investigated such a phenomenon using the Mg-4Zn tube in artificial blood plasma. Its occurrence mechanism was explored through elaborate experiments, including the hydrodynamic platform, real-time electrochemical detection, COMSOL simulation, and morphological observations. It is found the deficiency of Ca2+ and PO43+ in the localized solution induced by the excessively high pH value was responsible for its occurrence.

Original languageEnglish
Article number112335
JournalCorrosion Science
Volume237
Number of pages13
ISSN0010-938X
DOIs
Publication statusPublished - 15.08.2024

Bibliographical note

Publisher Copyright:
© 2024

    Research areas

  • Artificial blood plasma, Corrosion behavior, Local environment, Magnesium tube
  • Engineering

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