The New Approach to Produce Al Sheets with UFG Structure Using SPD Processing
Microstructure and mechanical properties of the ultrafine-grained (UFG) 1421 aluminum alloy processed by equal channel angular pressing (ECAP) have been studied. This UFG material was successfully rolled under the conditions of superplasticity. It was established that the rolled material exhibited not only the enhanced superplasticity, but also high strength retaining initial ductility at room temperature after additional short-term annealing and low-temperature aging.
Yuri Estrin and Hans Jürgen Maier
N.F. Yunusova et al., "The New Approach to Produce Al Sheets with UFG Structure Using SPD Processing", Materials Science Forum, Vols. 584-586, pp. 176-181, 2008