We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
ESTUDIO EN LA REGIÓN DE LAS ZONAS DE GÜINIER-PRESTON EN EL ALUMINIO AA6061, SEGUIDO POR RESISTIVIDAD ELÉCTRICA Y MICROSCOPÍA.
- Authors
Ochoa M., J. L.; Arias P., A. R.; Morales L., J. M.
- Abstract
In this work it studied the influence of the early stages of decomposition microstructural over the electrical resistivity in AA6061 aluminum in state of supersaturated solid solution or heat treatment T6, between room temperature and about 200°C, these stages pre-precipitation with nucleation and growth correspond to the formation and transformation from the Guinier-Preston zones (z-GP), and the metastable phases ß'' and ß'. It found that the variations in the electrical resistivity are due to the evolution of the microstructure by the effect of thermal energy, for the presence and structural rearrangement, primarily, of the alloying elements, and the impurities. GP zones and ß'' and ß' phases are primarily responsibles for this behavior, this being non-linear and non-monotonous. Optics microscopy and transmission electron microscopy reveal allowed the granular structure of this alloy, and the presence of secondary phases. The grain size variation and the growth of secondary phases are proportional to the electrical resistivity behavior.
- Publication
Acta Microscopica, 2013, Vol 22, Issue 1, p126
- ISSN
0798-4545
- Publication type
Article