SciELO - Scientific Electronic Library Online

vol.85 número205Assessment strategies for the integral management of waste electrical and electronic equipment-WEEEManufacture of oxy-acetylene thermally sprayed coatings on refractory substrates from unconventional feedstock material índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google



versão impressa ISSN 0012-7353


DORADO-BUSTAMANTE, Kevin; ZULUAGA-DIAZ, Benjamín  e  ESTUPINAN-DURAN, Hugo. Bioactivity analysis of the AZ31 Mg alloy coated by PEO (Plasma Electrolytic oxidation). Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.205, pp.328-337. ISSN 0012-7353.

Magnesium is a material that presents favorable properties for its selection as biomaterial; however, its application is restricted by the rapid corrosion. In this research was evaluated the surface modification of magnesium AZ31 by PEO and its effect on the protective and bioactive properties. The microstructure, phase composition and distribution of elements in the coating were characterized by SEM, XRD and EDX. Chemical stability, corrosion resistance, the bioactivity and electronic properties were evaluated using EIS and Mott-Schottky in simulated body fluid. The analysis of XRD and EDX indicated the presence of MgO, MgSiO4 in the coatings. The cross section analysis present a compact layer close to the substrate followed by an outer porous layer. EIS analysis showed that treatment increased the substrate protection in a simulated physiological medium.

Palavras-chave : anodized; coating; corrosion; biocompatibility; biomaterial.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )