Aleaciones ligeras de magnesio y aluminio nanoestructuradas por deformación plástica severa para la fabricación y mejora de sistemas de almacenamiento de energía.

In this proposal, we present an experimental strategy to produce nanostructured magnesium and
aluminum alloys by Severe Plastic Deformation (SPD) for their potential application in energy
storage systems. More specifically, we propose systematic studies for the synthesis of: magnesium
alloys for solid-state hydrogen storage through the formation of metal hydrides, as well as aluminum
alloys to make metal-air battery anodes. In both cases, the alloys will be processed by high pressure
torsion (HPT) or Equal Channel angular Pressing (ECAP) to modify the microstructure and
mechanical properties, obtaining nanostructures with an improvement in the electrochemical activity
for the battery anodes, as well as in the capacity of hydrogenation-dehydrogenation of hydrides.
The microstructure characterization will be carried out before and after SPD processing, as well as
the measurement of functional properties depending of the application: quantification of the
hydrogen stored in Mg-X alloys (X = Ni, Ti, V among others) and polarization curves, mass loss
measurements, calculation of corrosion penetration rate (CPR) and battery performance with Al-X
anodes (X = Mg, Zn, among others). The development of a nanostructure in these materials,
coupled with a proper selection of the chemical composition, is proposed as the key strategy of this
proposal, and an essential factor in these technologies to achieve the objectives proposed by
international organizations for clean energy systems based on electric power generation and green
hydrogen.

Producir de aleaciones ligeras de magnesio y aluminio
nanoestructuradas por deformación plástica severa para la fabricación de sistemas de
almacenamiento de energía de mayor rendimiento.

En esta propuesta se desarrollan las líneas de investigación de “Tecnologías avanzadas para el
desarrollo y aplicación de materiales” y “Caracterización de Materiales y Ensayos no-destructivos”.