Comparative Electrochemical Study of Pure Magnesium Behavior in Ringer’s and Hank’s Solutions

A corrosion study of high purity magnesium in two simulated physiological solutions (Ringer’s solution and Hank’s solution) is reported. The electrochemical behavior of pure magnesium rotating disc electrode (RDE) was examined using electrochemical impedance spectroscopy (EIS) and potentiodynamic po...

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Bibliographic Details
Published in:Protection of metals and physical chemistry of surfaces 2021, Vol.57 (1), p.168-180
Main Authors: Marwa Hattab, Ben Hassen, Samia, Cecilia-Buenestado, Juan Antonio, Rodríguez-Castellón, Enrique, Ben Amor, Yasser
Format: Article
Language:English
Subjects:
Anodic dissolution
Brucite
Calcite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion
Corrosion and Coatings
Corrosion products
Corrosion tests
Dissolution
Electrochemical analysis
Electrochemical impedance spectroscopy
Electrode polarization
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Magnesium hydroxide
Materials Science
Metallic Materials
Morphology
Photoelectricity
Physicochemical Problems of Materials Protection
Rotating disks
Spectrum analysis
Submerging
Thickness
Time constant
Tribology
X ray photoelectron spectroscopy
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Summary:A corrosion study of high purity magnesium in two simulated physiological solutions (Ringer’s solution and Hank’s solution) is reported. The electrochemical behavior of pure magnesium rotating disc electrode (RDE) was examined using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) techniques. The rotation affects the potentiodynamic polarisation curves and makes a shift in the anodic branches because of the dissolution of the corrosion layer. The EIS results showed the presence of three-time constant attributed to formation of the protective film on the Mg surface, the faradic process and the adsorption phenomena. The formation of a compact layer on magnesium surface, offers a higher corrosion protective ability for Mg. The thickness of this layer increase subsequently with increase in immersion time. The magnesium surface morphology was characterized by scanning electron microscopy (SEM). The composition and the microstructure of the corrosion product film were carried out using X-ray photoelectric spectroscopy (XPS) and X-ray diffraction (XRD). Brucite, calcite and magnesium calcite were detected in both medium, while aggregated particles containing a high concentration of phosphorus were formed on Mg in Hunk’s solution.
ISSN:2070-2051
2070-206X
DOI:10.1134/S207020512006012X