Tratamientos químicos de conversión para la protección de magnesio biodegradable en aplicaciones temporales de reparación ósea

M. Carboneras; L. A. Hernández-Alvarado; Y. E. Mireles; L. S. Hernández; M. C. García-Alonso; M. L. Escudero

doi:10.3989/revmetalm.0944

Chemical conversion treatments to protect biodegradable magnesium in applications as temporary implants for bone repair

Authors

M. Carboneras Centro Nacional de Investigaciones Metalúrgicas
L. A. Hernández-Alvarado Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí
Y. E. Mireles Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí
L. S. Hernández Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí
M. C. García-Alonso Centro Nacional de Investigaciones Metalúrgicas
M. L. Escudero Centro Nacional de Investigaciones Metalúrgicas

DOI:

https://doi.org/10.3989/revmetalm.0944

Keywords:

Magnesium, Corrosion, Chemical conversion, Biomaterials

Abstract

The present study was developed to improve the corrosion resistance of pure magnesium by applying chemical conversion coatings. Carbonate and fluoride layers were generated by immersion in solutions of NaHCO₃ of concentration 9 wt.%and HF of concentration 48 wt.%, respectively. Corrosion resistance of the coated samples was evaluated in comparison with that of the uncoated substrate by electrochemical techniques in a physiological solution (PBS). Results have shown that the carbonate coating is not viable to be used for protecting magnesium against corrosion.On the contrary, the fluoridemagnesiumcoating significantly increases the corrosion resistance ofmagnesium in physiological medium. The high compactness and adherence to the base metal of theMgF₂ layer produced by this simple chemical conversion treatment confer the protective properties to the coating.

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Published

2010-02-28

How to Cite

Carboneras, M., Hernández-Alvarado, L. A., Mireles, Y. E., Hernández, L. S., García-Alonso, M. C., & Escudero, M. L. (2010). Chemical conversion treatments to protect biodegradable magnesium in applications as temporary implants for bone repair. Revista De Metalurgia, 46(1), 86–92. https://doi.org/10.3989/revmetalm.0944

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Issue

Vol. 46 No. 1 (2010)

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Articles

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