Abstract
Homogeneous nanostructured and ultrafine-grained states in an Al-Mg-Mn-Zn-Zr alloy were produced by high pressure torsion at room temperature and by continuous equal channel angular pressing at 200 °C. The alloys with refined grain structure in both states exhibited low temperature and high strain rate superplastic behavior. The nanostructured alloy with enhanced mechanical behavior was used for MMC fabrication under superplastic conditions guided with the help of finite element simulations. Computer-aided “foil-fiber-foil” process using a woven-alike boron fiber network and nanostructured Al alloy provided smooth defect-free compaction of an Al-B fiber-reinforced composite under superplastic conditions at a temperature of 300 °C.
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