Abstract Fabrication of fine grain structures in Al alloys at elevated temperature is great difficulty, owing to the dramatic recrystallization and growth. In this study, particles with both (sub)micron nano-scaled sizes are introduced matrices (composites) deeply refine stabilize high temperature. Microstructural evolutions composites during deformation annealing characterized details compared...

The aim of the present study is the prediction of critical conditions (including critical strain and flow stress) for the initiation of dynamic recrystallization during thermo-mechanical processing of plain carbon steels. For this propose, torsion tests were conducted at different temperature (1050, 1100 and 1150˚C) and strain rates (0.002, 0.02 and 0.2/s). All flow curves showed a peak st...