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Título del libro: Tms Annual Meeting
Título del capítulo: Electrochemical characterization of the Al-Mg foamed materials in NaCl solutions

Autores UNAM:
SOCORRO DEL CARMEN VALDEZ RODRIGUEZ; SAID ROBLES CASOLCO; HOMERO CASTAÑEDA LOPEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2010
Palabras clave:

3.5%Nacl; Al-Mg alloy; Aqueous solutions; Dissolution process; Electrochemical characterizations; Electrochemical techniques; Foamed materials; Hot water; Metallic foam; Molten alloy; NaCl crystal; NaCl solution; Room temperature; Stable layer; Alloying elements; Alloys; Aluminum; Corrosion resistance; Dissolution; Electrochemical corrosion; Electrochemical properties; Functional electric stimulation; Phase interfaces; Porous materials; Sodium chloride; Steel containers; Water; Electrochemical impedance spectroscopy


Resumen:

The AIMg-alloy was made by melting Al and Mg ingot pieces in an alumine crucible, kept in a resistance electrical furnace. The molten alloy was poured into steel containers with NaCl crystals, in order to produce the foamed material. After solidification the salt was removed using hot water. The corrosion resistance properties of the material were characterized by electrochemical techniques. The potentiodynamic polarization and electrochemical impedance spectroscopy were used to characterize the dissolution process of the alloy when exposed to 3.5% NaCl at room temperature and estimate the corrosion resistance. The addition of the alloying elements modified the microstructure and influenced the formation of more stable layer at the interface when exposed in aqueous solution.


Entidades citadas de la UNAM: