Effect of calcium content on the microstructure and degradation of Mg-Ca binary alloys potentially used as orthopedic biomaterials

Ana Iulia Blajan, Florin Miculescu, Ion Ciuca, Cosmin Cotrut, Augustin Semenescu, Iulian Antoniac

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The effect of calcium addition in modifying the microstructural aspects and corrosion behavior was investigated on two different biodegradable magnesium alloys type Mg-xCa binary alloys (x = 0.8, 1.8 wt. (%)). Systematic microstructure investigations was made using optical microscopy and scanning electron microscopy coupled with energy dispersive X-ray. Following these experimental investigations, in the microstructure of the investigated Mg-Ca alloys a notable refinement was observed occurred with increasing the calcium content. The evaluation of corrosion resistance was performed both using electrochemical measurements and hydrogen release in simulated body fluid (SBF), as proposed by Kokubo and his colleagues, maintaining the temperature at 37°C. The results showed a lower corrosion resistance when the calcium content was increased, due to the increased Mg2Ca intermetallic phase in grain boundaries. Consequently, our preliminary results showed that MgCa0.8 alloy having a minimal amount of Mg2Ca appear to be a promising alloy to be used as a biomaterial for orthopedic implants.

Original languageEnglish
Title of host publicationBiomMedD 2014
EditorsAntoniac Iulian, Miculescu Marian, Sinescu Cosmin, Albu Madalina
PublisherTrans Tech Publications Ltd
Pages104-108
Number of pages5
ISBN (Electronic)9783038354321
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event6th International Conference on Biomaterials, Tissue Engineering and Medical Devices, BiomMedD 2014 - Constanta, Romania
Duration: 17 Sep 201420 Sep 2014

Publication series

NameKey Engineering Materials
Volume638
ISSN (Print)1013-9826

Conference

Conference6th International Conference on Biomaterials, Tissue Engineering and Medical Devices, BiomMedD 2014
CountryRomania
CityConstanta
Period17.9.1420.9.14

Keywords

  • Corrosion
  • Hydrogen release
  • Magnesium alloys
  • Orthopedic
  • SEM

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Effect of calcium content on the microstructure and degradation of Mg-Ca binary alloys potentially used as orthopedic biomaterials'. Together they form a unique fingerprint.

  • Cite this

    Blajan, A. I., Miculescu, F., Ciuca, I., Cotrut, C., Semenescu, A., & Antoniac, I. (2014). Effect of calcium content on the microstructure and degradation of Mg-Ca binary alloys potentially used as orthopedic biomaterials. In A. Iulian, M. Marian, S. Cosmin, & A. Madalina (Eds.), BiomMedD 2014 (pp. 104-108). (Key Engineering Materials; Vol. 638). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.638.104