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

Результат исследования: Материалы для книги/типы отчетовМатериалы для конференции

2 Цитирования (Scopus)

Аннотация

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.

Язык оригиналаАнглийский
Заголовок главной публикацииBiomMedD 2014
РедакторыAntoniac Iulian, Miculescu Marian, Sinescu Cosmin, Albu Madalina
ИздательTrans Tech Publications Ltd
Страницы104-108
Количество страниц5
ISBN (электронная версия)9783038354321
DOI
Статус публикацииОпубликовано - 1 янв 2014
Опубликовано для внешнего пользованияДа
Событие6th International Conference on Biomaterials, Tissue Engineering and Medical Devices, BiomMedD 2014 - Constanta, Румыния
Длительность: 17 сен 201420 сен 2014

Серии публикаций

Имя, фамилияKey Engineering Materials
Том638
ISSN (печатная версия)1013-9826

Конференция

Конференция6th International Conference on Biomaterials, Tissue Engineering and Medical Devices, BiomMedD 2014
СтранаРумыния
ГородConstanta
Период17.9.1420.9.14

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ASJC Scopus subject areas

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

Цитировать

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. В A. Iulian, M. Marian, S. Cosmin, & A. Madalina (Ред.), BiomMedD 2014 (стр. 104-108). (Key Engineering Materials; Том 638). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.638.104