Magnesium and its alloys as degradable biomaterials: corrosion studies using potentiodynamic and EIS electrochemical techniques
Título del documento: Magnesium and its alloys as degradable biomaterials: corrosion studies using potentiodynamic and EIS electrochemical techniques
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312973
ISSN: 1516-1439
Autores: 1
2
3
4
Instituciones: 1Charite University Medical School, Berlín. Alemania
2Technical University of Berlin, Berlín. Alemania
3University of Applied Sciences, Osnebruck, Niedersachsen. Alemania
4Universidad Nacional de La Plata, Facultad de Ingeniería, La Plata, Buenos Aires. Argentina
Año:
Periodo: Ene-Mar
Volumen: 10
Número: 1
Paginación: 5-10
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental
Resumen en inglés Magnesium is potentially useful for orthopaedic and cardiovascular applications. However, the corrosion rate of this metal is so high that its degradation occurs before the end of the healing process. In industrial media the behaviour of several magnesium alloys have been probed to be better than magnesium performance. However, the information related to their corrosion behaviour in biological media is insufficient. The aim of this work is to study the influence of the components of organic fluids on the corrosion behaviour of Mg and AZ31 and LAE442 alloys using potentiodynamic, potentiostatic and EIS techniques. Results showed localized attack in chloride containing media. The breakdown potential decreased when chloride concentration increased. The potential range of the passivation region was extended in the presence of albumin. EIS measurements showed that the corrosion behaviour of the AZ31 was very different from that of LAE442 alloy in chloride solutions
Disciplinas: Ingeniería,
Medicina
Palabras clave: Ingeniería de materiales,
Traumatología y ortopedia,
Biomateriales,
Magnesio,
Aleaciones,
Propiedades mecánicas,
Corrosión
Keyword: Engineering,
Medicine,
Materials engineering,
Traumatology and orthopedics,
Biomaterials,
Magnesium,
Alloys,
Mechanical properties,
Corrosion
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