Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9795642 | Materials Science and Engineering: A | 2005 | 4 Pages |
Abstract
The influence of severe plastic deformation induced by equal-channel angular pressing (ECAP) on the microstructure and aging was studied in two modified Al-Mg-Si aluminum alloys. The microstructure of both alloys after different heat treatments and deformation paths was characterized by X-ray diffraction and polarized-light microscopy. The effect of artificial aging was investigated on samples in the as-extruded condition after ECAP. The aging was monitored by hardness and electrical conductivity measurements. At higher aging temperature (170 °C), the alloys showed an increasing softening with time due to recovery or/and grain coarsening. At lower aging temperatures, the hardness remains almost constant owing to enhanced precipitation hardening.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Emanuela Cerri, Paola Leo,